Hansa
n. （中世纪）商业同业公会（会费）
🗣️ 情景例句
That's right.
是的。
I asked him to clean it for me, but he wouldn't.
我请他帮我清理，但是他不肯。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）