entries → 上游
TSUMUGU · TOCFL B2 (est.) · 詞
上游 word · TOCFL B2 (est.)
上游 ＝ 上 ＋ 游
ㄕㄤˋ ㄧㄡˊ · shàngyóu
noun — upper reaches of a river, upstream; (figurative) the front-end / leading position

字源 FORM — what the parts do

上upper, higher (上方)shàng
游a stretch of flowing river (河游)yóu氵 water on the left
上游，上方的上，游泳的游。
關 · Related
下游xiàyóuthe lower reaches — downstream, the opposite end源頭yuántóuthe river's source, just above the upper reaches