reducesbtosth
—phrasal verbwithreduceverb[IorT]uk/rɪˈdʒuːs/us/rɪˈduːs/
C2
to make someoneunhappyorcausesomeone to be in abadstateorsituation
使（某人）（情绪）低落；使（某人）沦落，使（某人）陷入困境
Hiscommentsreducedher totears(= made hercry).他的话把她气哭了。
Thesergeantwasreducedto theranks(= made anordinarysoldier)for hiscowardice.中士因为贪生怕死被降为士兵。
C2
If you arereducedto doing something, you areforcedto do it because you have no otherchoice.
使（某人）被逼无奈做…；使（某人）不得不做…
He was out ofcigarettesand wasreducedtosmokingthebuttsleftin theashtrays.我烟抽光了，无奈只好抽烟灰缸中的烟头。