Bluecaps
n. 【植物】矢车菊(Centaurea cyanus)；【鸟类】青山雀
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
The worst is yet to come.
最糟的还不只这样。
When several elephants are being trained at one time,
几只象同时训练时，