副词 ad.
1.一次,一回
I see them once every two months.
我每两个月与他们见一次面。
2.昔日,曾经
He once knew her, but they are no longer friends.
他以前认识她,但他们已经不是朋友了。
名词 n.
1.一次,一回
Once...
副词 ad.
1.一次,一回
I see them once every two months.
我每两个月与他们见一次面。
2.昔日,曾经
He once knew her, but they are no longer friends.
他以前认识她,但他们已经不是朋友了。
名词 n.
1.一次,一回
Once...