s. having the lower score or lagging position in a contest
r. in or to or toward the rear
r. remaining in a place or condition that has been left or departed from
r. of timepieces
adv. 在后地
prep. 在...背后
1. She left her bag behind when she rushed out of the house.
她匆忙离开家时把包落在了后面。
2. The sun set behind the mountains, creating a beautiful view.
太阳在山后落下，创造了美丽的景色。
3. There is a big tree behind the school playground.
学校操场后面有一棵大树。