Tectrix
n. [鸟]覆羽(指蔽覆羽翮基部的羽毛)
🗣️ 情景例句
There's no end to the paperwork I have on my desk.
我桌上的工作永远没个完。
You're wasting you breath.
你在白费口舌。
This mooncake is very nice.
这个月饼很好。