Kerfs
(kerf 的复数) n. 劈痕, 截口, 切口\\n[机] 锯口, 截口
🗣️ 情景例句
Yes. It works!
不错。有效！
Remember me to your grandfather please.
请替我问候你的祖父。
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，