いけない
1. bad, wrong, naughty
2. must not (do, be), should not, ought not to
3. useless, no good, bad
4. hopeless, beyond hope
5. unfortunate, a shame, a pity
6. unable to drink (alcohol)
7. so as not to ..., so that ... (won't), in case ..., for fear that ...
以免……，以免……，以防万一……，担心……，唯恐……
赤ちゃんは泣かせたままにしてはいけないのでしょうか？
tbd
Is it wrong to leave my baby crying?
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そんな話は少しも信じてはいけません。
tbd
You can't believe a word of that.
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フォント・ビジネスでは決して誰も信用してはいけないよ。
tbd
In the font business you must never trust anybody!
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職業に貴賎をつけちゃいけないよ～。
tbd
You can't go putting your values on people's work!
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元はと言えば、健ちゃんが鈍ちんなのがいけないんだからね～っ。
tbd
When you think about it, it's all Kenny's fault for being so obtuse.
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怯んだのを相手に気取られてはいけない。
tbd
You mustn't let the other person notice that you flinched.
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メーカーの謳い文句を迂闊に信じてはいけない。
tbd
You mustn't carelessly believe the maker's motto.
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お年寄りをからかってはいけません。
tbd
Don't make fun of old people.
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列車に乗り遅れるといけないと思い、朝早く家を出た。
tbd
I left home early because I didn't want to miss the train.
I left home early so I wouldn't miss the train.
I left home early in the morning for fear that I should miss the train.
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列車が止まるまでドアを開けてはいけません。
tbd
在列车完全停下来之前请不要开门。
Don't open the door till the train stops.
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