Pack anything not solid in them, especially goopy stuff like sunscreen.

用它可以装所有非固体的东西，特别是粘稠的东西，比如冰激凌。

youdao

Reduce the volume of trash you have to pack out and save weight by repackaging solid food into plastic bags and liquids into reusable containers.

为了减少你必须打包带走的垃圾的数量和重量，可以通过把固体食物重新包装放在塑料袋中，将液体灌入可重复利用的容器中。

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With different feeders changed to pack solid. Liquid, thick liquid, powder and so on.

用不同的馈线换装了固体。液体，粘稠液体，粉末等。

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Alternatively you can pack solid shampoo and soap bars (Lush has a good range, www.lush.co.uk), and remember to remove any extraneous packaging.

BBC: A guide to travelling with only carry-on luggage

Nokia also manages to pack in a solid 3 megapixel camera (minus auto-focus, unfortunately), whose photos apparently look great on the oversize 352 x 418 screen, which reviewer Rafe Blandford says is the best he has ever seen on a cellphone.

ENGADGET: Nokia N80 reviewed