乘人不备 meaning in Chinese

catch sb. unawares [unprepared]; put [throw] sb. off his guard; take sb. by surprise; take advantage of another's unpreparedness

Hurricanes never find people prepared .
飓风总是乘人不备突然袭击的。
Take sb . at advantage
乘人不备
Take at advantage
乘人不备
He had cut through a bulkhead unobserved , and had removed one of the sacks of coin , worth , perhaps , three or four hundred guineas , to help him on his further wanderings
他乘人不备凿穿舱壁，偷走了一袋值三四百基尼的金币，这下子他今后的漂泊生涯可不用犯愁了。
Kjv ： and through his policy also he shall cause craft to prosper in his hand ; and he shall magnify himself in his heart , and by peace shall destroy many : he shall also stand up against the prince of princes ; but he shall be broken without hand
新译本：他运用诡计，行骗无往而不利；他心里狂妄自大；他必乘人不备的时候，毁灭许多人；他要起来攻击万君之君，最后却非因人的手被毁灭。