In the last 40 years or so, we started sealing things up more, in the name of energy efficiency.

在过去40十多年里，我们以节能的名义把更多东西封起来。

Finally, he poured a few drops of the cocoa into a test tube, sealing it up carefully.

最后，他将几滴可可倒入试管中， 小心地密封起来。

And, then the rest of the time, which is the most part of the surgery, it's kind of sealing everything back up.

而且，剩下的时间，也就是手术的大部分时间，就是把所有东西都封起来。

With infinite care, he took a drop or two from the grounds in each cup, sealing them up in separate test tubes, tasting each in turn as he did so. His physiognomy underwent a curious change.

他非常小心地从每个杯子里的咖啡渣中取出一两滴，将它们密封在不同的试管中，一边依次品尝。他的相貌发生了奇怪的变化。