溯洄

sùhuí

to go against the current; to go upstream

Wiktionary

Entry Composition

=1 溯 sù
  1. to go upstream
  2. to trace the source
=1 溯 sù variant of 溯 sù
2 洄 huí
  1. eddying
  2. whirling (of water)
  3. to go against the current