资料来源 : pyDict

趋炎附势者,随波逐流者

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Timeserver \Time"serv`er\, n.
   One who adapts his opinions and manners to the times; one who
   obsequiously compiles with the ruling power; -- now used only
   in a bad sense.

资料来源 : WordNet®

timeserver
     n : one who conforms to current ways and opinions for personal
         advantage