pack n.包裹；《尤美〉小盒，小包。(辨析)指包在一起的东西，或一般为纸质的小盒。

(例证)a pack of two shirts两件一包的衬衫

Don't forget to send away for your information pack.

别忘了去函索取你的资料包。

He always carries a pack of cigarettes with him.

他总是随身携带一包香烟。

package n.包裹；〈美〉盒，包。

(辨析)多指通过邮局、快递公司等寄送的包裹；也指装食物等的纸质或塑料容器。

(例证)A package containing $100,000 in cash was delivered to his home.

一个装有10万美元现金的包裹送到了他家。

The little boy was so naughty that he opened two packages of cookies at

Walmart.

那名小男孩很淘气，他在沃尔玛超市里打开了两包曲奇饼干。

packaging n.包装物，包装材料。

(辨析)指用于包装商品的盒、袋、瓶等容器或材料。

(例证)Plastic packaging can be water-proof.塑料外包装能够防水。

Attractive packaging can help increase sales.

漂亮的包装有助于提高销量。

packet n.小盒，小袋；小包裹。

(辨析)在英国英语中指用来装商品的小盒、小袋或邮寄、递送的小包裹，在美国英语中则指装有供出售的液体或粉末的小袋。

(例证) Please buy me a packet of envelopes on your way home.在你回家的路上请给我买一包信封。

Where can I get a packet of cigarettes?

我去哪里能买到一包香烟？

She bought packets of ketchup when she went shopping today.

她今天去购物的时候买了很多包番茄酱