立彬の日本語
どうして出生率がそんなに急激に減ったのだろうか。
tbd
Why has the birthrate declined so sharply?
1,250
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どうして， 如何して
1. how, in what way, by what means
2. why, for what reason, for what purpose, what for
3. cannot possibly
4. no way
如何、以何种方式、通过何种手段；为什么，出于什么原因，为了什么目的
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出生率， しゅっしょうりつ， しゅっせいりつ
1. birth rate
tbd
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そんなに
1. so much, so, like that
tbd
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急激， 急劇， きゅうげき
1. sudden, abrupt, rapid, sharp, drastic, radical
突然的, 骤然的, 急剧的, 剧烈的, 激进的
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減る， へる
1. to decrease (in size or number), to diminish, to abate
减少(数量或规模)，缩减，减弱
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だろうか
1. don't you think?, indicates question
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が
1. indicates the subject of a sentence
2. indicates possession
3. but, however, (and) yet, though, although, while
4. and
5. used after an introductory remark or explanation
6. regardless of ..., whether ... (or not), no matter ...
7. indicates a des...
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の
1. indicates possessive
2. nominalizes verbs and adjectives
3. substitutes for "ga" in subordinate phrases
4. (at sentence-end, falling tone) indicates a confident conclusion
5. (at sentence-end) indicates emotional emphasis
6. (at sentence-end, risi...
句尾起强调作用；助词，表示所有关系
