【化】 苯偶姻; 二苯乙醇酮; 苦杏仁油脑

bitter sow thistle flower and seed

bitter

sweet, bitter, and astringent in flavor

bitter

bitter spar (dolomite, pearl spar)

bitter apple

sour and bitter upwelling and discharging [medicinals] are yin1

bitter fruit——something unpleasant as a result of some action