It's made from flexible proteins called crystallin.

它由有弹力水晶体蛋白构成。

Now there are more pants with stretchy waistbands on the Stitch Fix website than buttons or zippers.

如今，在Stitch Fix网站上，有弹力腰带有纽扣或链还要多。

Anyway, it's the bounce that counts.

不管怎样，还是弹力有意义。

Have you ever used those stretchy jeans that Origin makes?

你用过Origin品牌那种有弹力牛仔吗？

And because it had a springy, like a rim, i would dunk it and it would chew right back into my face.

因为它边缘是有弹力 我扣篮之后它会弹回我脸上。

A " fitted sheet" is a special kind of sheet that has elastic in each corner.

。 床笠是一种特殊床单， 在每个角落都有弹力。