立彬の日本語
彼は海外の事情に詳しい。
tbd
他知道很多外國事務。
He knows a lot about foreign affairs.
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海外， かいがい
1. foreign, abroad, overseas
海外
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事情， じじょう
1. circumstances, conditions, situation, reasons, state of affairs
情况
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詳しい， 精しい， 委しい， くわしい
1. detailed, full, minute
2. knowing very well, knowledgeable (about), well-acquainted (with), well-informed (about), familiar (with)
详细；了解，精通，熟悉
彼， かれ
1. he, him
2. boyfriend
他
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
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
に
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), for, with
5. by, from
6. as (i.e. in the role of)
7. per, in, for, a (e.g. "once a month")
8. and, in addition to
9. if, although
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