Tail covert
【鸟类学】尾部复羽
🧩 词语组成解析
tail
[teil]
n. 尾;尾部;燕尾服;尾随者;
vt. 跟踪;装上尾巴;
vi. 队伍单行行进时拉长或产生间隔;侦察队两两散开;[建筑学] 嵌上，搭上;
🗣️ 情景例句
This could be your lucky day.
今天你要时来运转了。
I'm about ready.
我差不多准备好了。
But which language is the most widely spoken in the world?
但是世界上哪种语言运用最广泛？