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乗る， 乘る， のる， ノる
1. to get on (train, plane, bus, ship, etc.), to get in, to board, to take, to embark
2. to get on (e.g. a footstool), to step on, to jump on, to sit on, to mount
3. to reach, to go over, to pass
4. to follow, to stay (on track), to go with (the time...
乘(车，船，飞机等)；登上（例如脚凳），踩上，跳上，坐上，攀上
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なきゃならない， 無きゃならない
1. cannot do without something, indispensable, absolutely necessary
2. have to do
tbd
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