吃透英语课本，提升在校竞争力
v. 游泳；“swim”的过去分词
原型：swim
Its mother had been killed nearby an' th' hole was swum out an' th' rest o' th' litter was dead.
它的母亲在附近被杀了，洞里浸满了水，其余的幼崽都死了。
He has swum across the lake.
他已经游过了那个湖。
She has swum across the lake.
她已经游过了湖。
