区别是grab指的是夺取或抓住;抢夺,霸占;匆匆拿走。grab for指的是试图抓住,后面加具体事务。例句辨析:grab1、i managed to grab her hand. 我抓到了她的手。2、he was clumsily trying to grab at alfred's arms. 他笨手笨脚地想抓住艾尔弗雷德的手臂。3、grab that waiter, mary ann....
区别2113是: for the first time 做时间状语,意思为首次、第5261一次。4102 at the first time 做时间状语,意思为起初1653、第一次。例句辨析: at the first time the crabs broke th** thin net at the first time. 下第一次笼子之后螃蟹就将这个细网子弄破了。it seemed a go...