Kerfs
(kerf 的复数) n. 劈痕, 截口, 切口\\n[机] 锯口, 截口
🗣️ 情景例句
Those are the rules and regulations, and we have to abide by them.
这些就是这儿的规矩， 大家都应该遵守。
It is wisdom sometimes to seem a fool.
大智若愚。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。