Fluting cutter
[机] 开槽铣刀
🧩 词语组成解析
n. 吹笛子, 笛声, 刻凹槽\\n[化] 开槽; 切槽
🗣️ 情景例句
You know, when I was your age,
要知道 ，当我像你这么大的时候，
It's been a long time.
好久不见了。
In 1990?
1990年呢？