guard

guard

名词 guard:

a person who keeps watch over something or someone

the person who plays that position on a football team

a device designed to prevent injury

同义词：safety, safety device

a posture of defence in boxing or fencing

the person who plays the position of guard on a basketball team

a group of men who escort and protect some important person

同义词：bodyguard

a precautionary measure warding off impending danger or damage or injury etc.

同义词：precaution, safeguard

the duty of serving as a sentry

同义词：guard duty, sentry duty, sentry go

a position on the line of scrimmage

a position on a basketball team

动词 guard:

to keep watch over

watch over or shield from danger or harm; protect

同义词：ward

protect against a challenge or attack

同义词：defend, hold

take precautions in order to avoid some unwanted consequence