I can't carry them all.
一个完整的句子由主语,谓语,宾语构成
这样应该简单多了吧I can't carry them all.all.为什么不放在them前面？？？？？那样就有语法错误了。all在这里仅仅作为宾语补足语要么就是I can't carry them all.要么就是I can't carry them.