She sucked an ice cube into her mouth, and crunched it loudly.

她把一冰块儿含在嘴里，并嘎吱嘎吱地大声嚼起来。

With the help of an ice cube, gently rub the ice on her back and as the ice melts off her.

需要用一小块儿冰，轻轻地用冰块摩擦她的后背，让它在她身上慢慢融化。

A closed system would be, for instance, a glass of ice water with an ice cube in it, with the lid on top.

一个封闭系统可以是，比如说，一杯放了一个冰块的冰水，顶上加了盖子。

I call it the ice cube.

我叫它冰块。

Fill ice cube trays with lemon juice. Once frozen, store the cubes in a plastic resealable bag. This way you always have fresh lemon juice on hand.

在制冰盒中装满柠檬汁。冷冻后，把冰块储放在可再次密封的塑料袋中。这样你在手边随时都有新鲜的柠檬汁。