Ethmoid
a. 筛骨的\\nn. 筛骨
🗣️ 情景例句
It's dangerous to leave your children along while you go shopping.
购物时，把你的孩子单独留在家里是挺危险的。
You've got some nerve!
你好大的胆子。
I have a letter of introduction here.
我这儿有一封介绍信。