Translation attempt:
Please don’t prepare food in microwave oven since there is danger of catching fire and emitting smoke.
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Translation
Given that there is concern for ignition as well as emitting smoke, please refrain from preparing in the microwave.
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Translation
Since there is a risk of ignition as well as smoke emission, please do not cook in a microwave oven.
Use case
健康がよくなるためにスポーツすること及び健康なダイエットを食べることは大切です。
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...
It becomes hot when filled with boiling water, so please hold it with caution.
Please don’t store it next to strong smelling things.
If it boils over or a spark strikes, there is a danger of fire and smoke, so please refrain from cooking it in a microwave oven.
Please eat the product as soon as you opened it.
Please throw away the package according to local laws.
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Summary
This can catch fire and emit smoke, so please do not cook in microwave /
There is risk of fire and smoke, so please do not cook in microwave /
Do not cook in microwave, as it can catch fire and emit smoke
I don’t know which one is better 
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T
Since this is a risk from the ignition as well as fumes, please stop the microwave cooking.
U
お医者さんが私に健康的ダイエット及び日々運動するのを勧めました。
Summary
In order to be in good health, sports/exercise as well as diet are important.
That is funny, I swear I didn’t read you sentence before I wrote mine 
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nom nom nom
Since there is a risk of emitting fumes or catching fire please don’t microwave.
Welp, I’m hungry now.
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October 8th Translation
Notes :
As some of you may have noticed, there were lots of grammar points used in this post! Instructions for how to use things can be a great place to test your translation ability, especially translating polite language!
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Summary
Do not use large amount in a room where there is fire.
Full Translation
Fire and High Temperature Warning
Because of the danger of using high pressure gas, please beware of the following below:
- Don’t use near fire/flamable object.
- Don’t use large amount in a room where there is fire.
- Don’t put in a place exposed to the sun or near high temperature places like stove, fan heater, etc above 40 celsius.
- Don’t put in fire.
- Throw away after fully using.
Please fix/add anything especially for #3.
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Translation
Do not use large quantities in a room with fire present.
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Translation
Do not use in large quantities in a room with a lit fireplace.
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Summary
Do not use large amounts of it in a room with fire present / where fire is used
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T
You should not use large quantities (of bug spray) in places where indoor flames (fire) are used.
U
明日たぶん忙しくなるので僕は早くに起きることだ。
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...
Beware of open fire and high temperature.
This product contains inflammable gas under high pressure that can be dangerous, so keep the following rules.
- Don’t use near the fire or flame.
- Don’t use it too much in a room with an open-flame source.
- When heated there is a danger of explosion, so keep it away from direct sunlight, ovens, heaters, and don’t put it in places where the temperature can be above 40 degrees Celsius.
- Don’t put it in the fire.
- Throw an empty can away.
High-pressure gas: Liquefied Petroleum/Dimethyl Ether
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Summary
“Do not use large quantities indoors where there is fire”
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October 9th Translation
Notes :
火気 is a bit of a tricky word to translate in this passage, and comes across very similar to ‘living flame’, or ‘ignition source’ in English. In the target grammar point, だ will often be omitted, especially when the original meaning is very clear.
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October 10th
合う
Text :
それでいいだろうこれからはお互い協力しあい生きることだ
Note :
There will be a special announcement tomorrow re GrammarInTheWild, so make sure to check it out!
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Summary
I guess this will be fine. Let’s help each other out from now on.
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Translation
So far we have been fine, but going forward we should be working together to survive.
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