Chadless perforation
[电] 无屑凿孔
🧩 词语组成解析
[计] 半穿孔
perforation
[[ˌpə:fə'reiʃən]]
n. 穿孔, 孔眼, 贯穿, 贯通\\n[化] 穿透
🗣️ 情景例句
Well, I don't think it's anything serious.
嗯，我想没有什么严重的。
I really feel bad about it. Let me buy you a new one.
我真为这件事感到遗憾。我给你买一本新的吧。
There are a lot of people in the swimming pool.
游泳池里挤满了人。