Specification of problem
[计] 问题说明
🧩 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];
🗣️ 情景例句
Don't forget about the bet.
别忘了打赌的事。
No,I don't understand.
不，我不明白。
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。