Backplate
[计] 背面电极
🗣️ 情景例句
It hurts so much when a baby gets his first teeth.
小孩子长第一颗牙齿时好痛哟。
You'll drop it, if you don't teke care.
你不专心的话，就会掉下。
Most business letters around the world are written in English.
世界上大多数商务信函都是用英语写的。