How many 'blue' phrases do you know? Learn three more here.

For example, 'No student can leave the room' and 'No students can leave the room'. So, what's the difference? Buli 在 “no” 后面衔接可数名词时，使用名词的单数或复数形式在语法上都是正确的。 不过，这两种用法所表达的意思略有不同。