tone²,tone up v [T] to make your muscles or skin feel firmer, healthier etc 使〔肌肉或皮肤〕更强健，使更健康: I'm trying to tone up my stomach. 我正在试图调理肠胃。
tone sth ↔ down to change the words of something so that it is less likely to offend someone, or is less exciting 减弱…的语调，使缓和: They toned down the words to the song so it could be played on the radio. 他们修饰了歌词，以便能在广播中播放。