Partial arithmetic
[计] 部分运算
🧩 词语组成解析
🗣️ 情景例句
What kind of advice are you looking for?
希望能得到什么建议？
I'm two years younger than my sister.
我比我姐小两岁。
Between 1850 and 1910 the bison population is thought to have fallen from 60 million to just a few hundred.
人们认为，在1850年到1910年之间，野牛的头数从6，000万头降到只有几百头了。