Pointer subtraction
[计] 指示字减法
🧩 词语组成解析
pointer
['pɔintə]
n. 建议;线索;教鞭;（测量仪器上的）指针;
🗣️ 情景例句
I visited Japan on an observation tour of its industries.
我到日本观摩它的工业。
When rogues (or thieves) fall out, honest men come by their own.
盗贼一内哄，好人就自在。
Besides, this man is a clever thief.
另外，此人是个聪明的小偷。