-----------------------------------
旅行， りょこう
1. travel, trip, journey, excursion, tour
旅行，旅游
-----------------------------------
いく， ゆく， 行く， 往く
1. to go, to move (towards), to head (towards), to leave (for)
2. to move through, to travel across, to walk along (e.g. a road)
3. to go (well, badly, etc.), to proceed, to turn out, to get along
4. to do (in a particular way), to go (with; a choice...
去，进行；穿过，走；做，试
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...
tbd
