Backing vacuum
[化] 前级真空
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
🗣️ 情景例句
Now I remember.
现在我想起来了。
Don't forget to thank him.
不要忘记谢谢他。
Sounds like a good idea. Let's do that.
听起来是个好主意。咱们去游泳吧。