Backknee
[医] 膝反屈
🗣️ 情景例句
I'll get it. Hello.
我去开门。哈啰。
Why didn't you like cleaning house so much?
为什么你那么不喜欢清理房子？
Even a telescope in orbit round the earth, like the very successful Hubble telescope, would not be suitable because of the dust particles iron solar system.
即使是一台放置在围绕地球的轨道上的望远镜——如非常成功的哈勃望远镜——也因为太阳系中的尘埃微粒而无法胜任。