n. 背,背部;背面,反面;后面,后部;(椅子等的)靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
🗣️ 情景例句
Hand me two eggs from the refrigerator,
替我从冰箱拿两个蛋来。
Did you have fun?
你玩得开心吗?
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.