-----------------------------------
就く， 即く， つく
1. to take (seat, position, course, office, etc.), to assume, to be hired, to be employed
2. to ascend (the throne), to accede
3. to start (on a journey), to commence, to depart
4. to study (under teacher), to be an apprentice
就座、就职；登基，即位；启程，开始，出发；师从某人学习，当学徒
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
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
