两点四十和三点二十用英语怎么说不分上下午

twenty to two o'clock 两点四十, twenty pass three o'clock 三点二十

两点四十：twenty to three/two twenty
三点二十：twenty pass three/three twenty。

Twenty to three两点四十
Twenty passed three三点二十

twenty to three twenty past three

Twenty to three/two twenty
Twenty passed three/three thirty

Twenty to three
Twenty past three