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本題， ほんだい

1. main topic, main subject, main issue, main question 2. this subject

tbd

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ようにする， 様にする

1. to see to it that ..., to make sure that ..., to try to ..., to make an effort to ...

tbd

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から

1. from (e.g. time, place, numerical quantity), since 2. from (originator), by 3. because, since 4. out of (constituent, part) 5. through (e.g. window, vestibule) 6. after, since 7. expresses sympathy or warning

从，自……；因为；被，用于……

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