Since then, the method of pleating has been one of fashion history's most closely guarded secrets.

从那时起，打褶方法就成时尚史上最守的秘之。

I might try to find some way to pleat it or pin it that made it easier to take on and off.

我可能会尝试找到些打褶或别针的方法，以便更容易穿脱。

A protein to be of use must not only assemble amino acids in the right sequence, but then must engage in a kind of chemical origami and fold itself into a very specific shape.

派上用场，个蛋白质分子不但要把氨基酸分子按照合适的顺序排列起来，还要从事种化学打褶工作，把自己叠成特定的形状。