Placoderms
(placoderm 的复数) n.[古生]盾皮鱼
🗣️ 情景例句
I don't know why I didn't think of it.
我不知道为什么我没有想到这一点。
Measures should be taken to reinforce the cartons.
应采取措施加固纸箱。
It's over there,behind the teapot.
就在那儿，茶壶后面。