I'll need a taxi to the train station. Could you find one for me?
我想到火车站。能为我叫辆出租车吗?
Which foot hurts?Is it the left one?
哪个脚受伤?是左脚?
In the first place, any scientific study requires that there be no preferential weighting of one or another of the items in the series it selects for its consideration.