Backstroke
[ ['bækstrəuk] ]
辅助 Assistant
n. 还击, 反手击球, 仰泳\\nvi. 还击, 反手击球, 仰泳\\nvt. 用反手击
📖 牛津释义
backstroke
n [U] swimming stroke done on one´s bac;s back in the water 仰泳.
🗣️ 情景例句
for reading to the kids in the hospital.
为住院的孩子朗读。
My fever is gone.
我的烧已经退了。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，