...年人了。Don't
let children play near water without an adult to watch them. 没有大人照看,不要让小孩子在水边玩耍。知识类例句:A
human adult has about 100 billlon cells. 成人身体约有一千亿个细胞。An
adult of ordinary size has about five liters of blood. 普通...
One in ten students had failed.One out of twenty was badly damaged.这种结构 one in ten ; one out of ten 意义上有什么不同吗,out有超出之意吗? 如果是two in ten ; two out of ten ,谓语该用单数还是复数??