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单词 on (your) guard
释义

on (your) guard

idiom
carefulandawarebecause asituationmight bedangerous:
Passengers onpublictransportationwerewarnedto be ontheirguard againstpickpockets.
(Definition ofon (your) guardfrom theCambridge Academic Content Dictionary© Cambridge University Press)
#https://dictionary.cambridge.org//dictionary/english/on-guard##
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更新时间：2026/1/19 8:23:38