Undulations
(undulation 的复数) n. 波动, 波状弯曲, 起伏\\n[医] 波动
🗣️ 情景例句
Betty, you had it, but you didn't say it.
Betty你知道答案， 但是你没有说出来。
Who would you like to invite to the party?
你要邀请谁来宴会？
Love from
爱你的