Softer fabrics are much more becoming than stiffer ones.

较软布料比较硬的布料更好看。

Mary looked stiffer than ever.

玛丽看上去比以前更拘谨了。

Other increases would be stiffer.

其他费用增长就比较硬朗一些。

And competition is certainly getting stiffer.

而且竞争定会越来越激烈。

It will suddenly seem much stiffer or stronger.

突然间，它就看起来更加硬更加粗。