Topline
n. 背线(指动物身体上部从头至尾的外形线)
🗣️ 情景例句
Hello. What can I do for you?
你好。我能为你做点什么吗？
My brother wants to learn how to sail a boat.
我的兄弟要去学操纵帆船。
I am afraid that l have to go.
我要走了。