Fluctuated
v. 波动, 涨落, 起伏( fluctuate的过去式和过去分词 )
🗣️ 情景例句
Would you like to join me for lunch?
跟我一起吃午餐吗？
Look at the world through rose-coloured glasses.
对万事要乐观。
only of metal, which wears away by friction.
而是由金属组成，而金属可以随着磨擦而磨损殆尽。