副词
1. The house is set back from the road.
那所房屋远离公路。
及物动词
1. You could back the dress with silk.
你可以用丝绸布给这件衣服加衬里。
1. Someone was pacing back and forth behind the curtain.
有人在幕布后踱来踱去。
名词
1. back的解释
1. We lay on our backs under the tree.
我们在树下躺着。