易混淆的单词： CANS

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Experts advise using the cans as soon as possible .

专家建议尽快食用这些罐头。

But experts say that some unopened , undamaged all-metal cans can be saved .

但专家说一些未曾开封的无破损的金属罐头可以继续保存。

Some larger cans weigh up to a pound ( or more ) and could be used for upper body exercises .

一些较大的罐头重量能超过一磅（甚至更多），可以被用作上肢的锻炼。

I 'll open up a couple of cans .

我去开两个罐头。

He sets his gun against the kitchen chair , opens a cupboard , and takes down two medium-sized cans .

他把枪靠在吃饭用的椅子上，打开碗柜，取下两厅中号罐头。