立彬の日本語
彼女はその問題に詳しい。
tbd
She is at home in the subject.
641
-----------------------------------
彼女， かのじょ
1. she, her
2. girlfriend
她；女朋友
-----------------------------------
その， そん， 其の
1. that, the
2. part (as in "part two")
3. um ..., er ..., uh ...
那个；部分（如“第二部分”）
-----------------------------------
問題， もんだい
1. question (e.g. on a test), problem
2. problem (e.g. societal, political), question, issue, subject (e.g. of research), case, matter
3. question (i.e. doubt)
4. public discussion, controversy
5. trouble, problem, inconvenience, difficulty
问题（例如在考试中），难题；麻烦、问题、不便、困难；问题（如社会性、政治性问题）、疑问、议题、课题（如研究课题）、案例、事项；疑问；公开讨论，争议
-----------------------------------
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
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题
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
tbd