We find writers of parables and epigrams and family letters who make no attempt to coordinate their thoughts into a rigid system.

这里有许多警喻、警语和家信的作家，他们写作时都是乘兴之所到，随后写去，并不讲究什么严格的系统。

youdao

I think part of this is due to the realization that previous rigid design standards didn't really make any applications considerably easier to use.

我认为，这是由于认识到，以往僵化的设计并没有真正使应用程度易于使用。

youdao

The ultimate dream for origami engineers is to make buildings from rigid materials that can be reconfigured according to need, Demaine says.

Demaine说，“折纸工程师”们的终极目标是利用刚性材料建造可以根据需要重新构造的结构。

youdao

Most economists think these are all terrible ideas: they would make the economy rigid just when it needs to be flexible.

ECONOMIST: Sexophobia

Simon Kneen, creative director of Banana Republic, says the retailer also used a lighter fusable, or adhesive, in the collars to make them less rigid, trying to achieve collar "magic, " Mr. Kneen says.

WSJ: Guide to Men's Shirt Collars: Which Styles Go With Which Occasions and Flatter the Face

Awkward though this is, e-mail's rigid protocols make it hard to innovate in the in-box.

ECONOMIST: Monitor