请教字典中[c+sing./pl.v] 的含义?最好通俗易懂些,有些例子就更好了.

问题描述:

请教字典中[c+sing./pl.v] 的含义?最好通俗易懂些,有些例子就更好了.

可数名词+单数动词/复数动词
A teacher is /lives(sing.v单数动词)in the room.
Some teachers are/live(pl.v复数动词) in the room.