for an hour 和an hour有什么不同.
for an hour 和an hour有什么不同.
an hour ago和an hour later有什么区别?
One and a half an hour 和An hour and a half 有什么不同
half an hour 和a half hour有什么区别?
for an hour
an hour one hour
是sleep for an hour 还是 sleeping for an hour
i danced for an hour.
spend an hour on ……和spend an hour in……有什么区别?如题
Half an hour =什么?
half an hour? 什么意思?
we walked 什么 an hour