Radius of notch
[机] 凹口半径
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
notch
[nɑtʃ]
n. (V字形的)槽口;刻痕;<美>峡谷;等级;
vt. 砍，切;在…上作刻痕、开槽口;作刻痕计算;得分;
🗣️ 情景例句
Did you forget something?
你是否忘了什么东西吗？
Let us take a break now.
让我们休息一下。
I have just received a letter from my old school, informing me that my former headmaster,
我刚刚收到母校的一封信，通知我说以前的校长