Sign symbol
[计] 正负符号
🧩 词语组成解析
🗣️ 情景例句
She is indifferent to other people's suffering.
她对别人的痛苦漠不关心。
How many pounds are you going to order?
你要订几磅？
All the students are expert drivers, but before they drive any of the buses, they will have to pass a special test.
所有的学生都是开车的能手，但在驾驶公共汽车之前，他们必须通过一项专门测验。