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

从那时起，打褶方法就成为时史上最严密保守秘密之。

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.

为了被派上用场，个蛋白质分子不但要把氨基酸分子按照合序排列起来，还要从事种化学打褶工作，把自己叠成特定形状。