Paleochannel
古河道; 埋藏河道
🗣️ 情景例句
Thanks.
谢谢。
Can I speak to Mr. Li?
我能请李先生讲话吗？
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时