If you can't get a cab, give me a call. It's not safe to walk home along at night.
如果你叫不到出租车的话,打电话给我,晚上一人走回家不安全。
We use service centers at major stores. They ship goods back to our national service center for repairs.
我们采用大店服务中心,他们可把产品运送到我们的国内服务中心维修。
If one group of people were disturbed from their eye-movement sleep for several nights on end,
如果有两组人,一组人连续几夜在眼球队活动时被叫醒;