at least的用法总结
at least可以理解为副词来修饰find，而副词一般都用来修饰动词；
at least (表示真实性或可能性)至少,最不济；
at least 表示更正或改变自己刚说过的话)至少,起码；
at least (表示相对于不利条件或糟糕情形)起码,不管怎样；
at least 介词短语,在句中做状语,修饰数量或程度的词语
They won\'t arrive for at least two hours yet.
他们至少要过两个小时才能到。
Almost all homes have at least one TV set.
差不多每家都至少有一台电视机。
He\'s ancient ─ he must be at least fifty!
他老得很了——肯定至少有五十岁！
It is imperative to continue the treatment for at least two months.
必须继续治疗至少两个月。
Most households now own at least one car.
大多数家庭现在至少有一辆汽车。