You break the seal between them and feel the thing get cold, for example, right.

如果你买了制冷或加热包,你打开它们之间的封条。

麻省理工公开课 - 热力学与动力学课程节选

and Pembroke area there's a place, "the steps", that if you step on the seal,

在彭布鲁克区，有个地方叫“台阶”，如果你踏在了印记上，

布朗的学生们 - SpeakingMax英语口语达人

We control how we use time, we control the temperature in the environment, and hermetically seal ourselves in things.

我们控制时间的利用，我们控制周边环境的温度,我们把自己封闭在各种事务中，与世隔绝。

普林斯顿公开课 - 人性课程节选

You can see them like all of the teenage type stores like "Forever 21", "Wet Seal",

在青少年专卖店里，比如说 "Forever 21"，“Wet Seal” 等，到处都能看到这种东西，

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