| 单词 | guard |
| 例句 | guard verb 1.•infantry guarded the barricaded bridge:protect, stand guard over, watch over, keep an eye on | cover, patrol, police, defend, shield, safeguard, keep safe, secure. 2.•the prisoners were guarded by armed men:keep under surveillance, keep under guard, keep watch over, mind. 3.•forest wardens must guard against poachers:beware of, keep watch for, be alert to, keep an eye out for, be on the lookout for, be on the alert for.▶noun 1.•border guards:sentry, sentinel, security guard, watchman, night watchman | protector, defender, guardian | lookout, watch | garrison. 2.•her prison guard:warden, warder, keeper | jailer | informal screw | archaic turnkey. 3.•he let his guard slip and they escaped:vigilance, vigil, watch, surveillance, watchfulness, caution, heed, attention, care, wariness. 4.•a metal guard:safety guard, safety device, protective device, shield, screen, fender | bumper, buffer. PHRASES off (one's) guard •the explosion from the furnace room caught everyone off guard:unprepared, unready, inattentive, unwary, with one's defenses down, cold, unsuspecting | informal napping, asleep at the wheel. on one's guard •homeowners should be on their guard:vigilant, alert, on the alert, wary, watchful, cautious, careful, heedful, chary, circumspect, on the lookout, on the qui vive, on one's toes, prepared, ready, wide awake, attentive, observant, keeping one's eyes peeled. |
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