lower in的用法和樣例：
例句
- As they read the choosing interrogative sentence, they raise their hands in rising tones and lower in falling tones.
由于他們上面寫(xiě)著(zhù)那選擇疑問(wèn)句，他們舉起他們的交上升調和管道下溝降調。
詞匯搭配
- lower in 下溝
- feel a vacuum in the lower regions [謔]覺(jué)得肚子空空的...
