Thalweg
最深谷底线
🔁 扩展释义
【法】 航道分界线
🗣️ 情景例句
Philip, I took Michelle to a school play
Philip,我带Michelle看过学校演出的
The surest way to be happy is to be busy.
要快乐，最可靠的办法是忙碌。
On weekdays, I get up at 6:30.
我平时六点半起床。