乘人不备 catch someone napping ; catch a weasel asleep ; to take advantage of sb in an unguarded moment ; to take sb by surprise

乘其不备 raid ; take advantage of somebody's unpreparedness

乘其不备地攻占 take by surprise

乘人不备时拍的 Unposed Photo

乘敌不备 take the enemy unawares

乘人麻痹不备 caught a weasel asleep

乘人不备而进攻 pouncetheenemy ; launchasurpriseattack

乘某人不备 catch sb. off guard