お年寄りにはできるだけ親切にしなくてはいけません。
tbd
We must be as kind to old people as possible.
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必ずあなたは来なくてはいけません。
tbd
By all means, you must come.
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綴りと句読法にもっと気を付けなくてはいけませんよ。
tbd
你得要更注意拼字和標點符號。
You must be more careful about spelling and punctuation.
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追試を受けなくてはいけません。
tbd
I have to take the test again.
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出されたものを食べなくてはいけません。
tbd
You must eat what you are served.
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今すぐにやらなくてはいけませんか。
tbd
Do I have to do it right away?
Do I have to do it now?
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もう１１時です。おいとましなくてはいけません。
tbd
It's already eleven o'clock. I must be leaving now.
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まず第一にきみはそれを辞書で調べなくてはいけません。
tbd
First of all, you must look it up in the dictionary.
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すぐに出発しなくてはいけませんか。
tbd
Must I start at once?
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