立彬の日本語
彼は医学の研究に携わっている。
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He is engaged in medical research.
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医学， いがく
1. medical science, medicine
医学科学，医学
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研究， けんきゅう
1. research, study, investigation
研究
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携わる， たずさわる
1. to engage in, to participate in, to take part in, to be involved in
参与；加入；参加；涉及
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
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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