1. Troops were reported to be guarding the key points there. 据报告，部队正守卫着那儿的要塞。
2. Knowledge is power guard it well. 知识是力量，好好保护它。
3. The guard rebounded off the backboard. 后卫抢到篮板弹回的球。
英英解释
n.
1. a person who keeps watch over something or someone
2. the person who plays that position on a football team
3. a device designed to prevent injury
4. a posture of defence in boxing or fencing
5. the person who plays the position of guard on a basketball team
6. a group of men who escort and protect some important person
7. a precautionary measure warding off impending danger or damage or injury etc.
8. the duty of serving as a sentry
9. a position on the line of scrimmage
10. a position on a basketball team v.
1. to keep watch over
2. watch over or shield from danger or harm; protect
3. protect against a challenge or attack
4. take precautions in order to avoid some unwanted consequence
