on and on 与 on and off 的区别?
on and on 与 on and off 的区别?
off and on与on and off有偶然的的意思么?
on- and off- balance
ect与and so on 的区别
帮翻译一下On and Off Premise
the light keeps going on and off
Turn the power off and on again
on and
体育英语里面的off-and-on,shootaround是什么意思?
on and off 可用其它的短语替代吗
work out and work on 的区别
on my two days off与on my two-day off的区别