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
We once found a cat.
我们有一次找到一只猫，
Time is money, but money is not time.
时间就是金钱，但金钱不是时间。
It was one of the biggest buildings of all time and a lot of people from many countries came to see it.
它是有史以来最高大的建筑物之一，因此，人们从各个国家纷纷前来参观。