Backplate
[计] 背面电极
🗣️ 情景例句
If you can't handle this job by yourself, I'm just a phone call away.
若你不能自己处理这件事的话，就打个电话给我吧。
Should I take the bus?
要乘公共汽车吗？
You did a good job.
你干得很好。