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上流， じょうりゅう
1. upper stream, upper course, upper reaches
2. upstream
3. upper classes
tbd
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ある， 有る， 在る
1. to be, to exist, to live
2. to have
3. to be located
4. to be equipped with
5. to happen, to come about
有，存在；有，拥有；发生；位于；配备
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