🗣️ 情景例句
Don't be so miserable!
别这愁眉苦脸的。
Did you go to the hospital last night?
你昨晚去医院了吗？
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，