Bluetit
n. [鸟类]青山雀 (Parus caeruleus,产于欧洲)
🗣️ 情景例句
Oh, yes. Are his models here?
噢 ，对啦。 他的模型在这里吗？
Let's call it a day.
我们今天就到这儿吧。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）