Surjection
[数]满射
🗣️ 情景例句
It's important to her.
这对她来说很重要。
This is my first year of college, I'm a freshman.
这是我上大学的第一年，我是一年级学生。
Six men have been trapped in a mine for seventeen hours.
6个人被困在矿井里已有17个小时了。