Trictum
脊板
🗣️ 情景例句
Mary is not available at the moment.
Mary现在没空接电话
The restaurant doesn't open until seven forty-five.
饭馆要到七点四十五分才开门。
and it is only in the seas and rivers, and sometimes lakes, where mud and sit have been continuously deposited,
所以只有在泥沙不停淤积的海洋和江河里，有时在湖泊里，