形容词 stiff:

1. not moving or operating freely

2. powerful

3. rigidly formal

4. having a strong physiological or chemical effect, "a stiff drink"

5. marked by firm determination or resolution; not shakable

6. incapable of or resistant to bending

7. very drunk

stiffadj.硬的；僵直的；艰难的；生硬的；拘谨的；烈性的adv.极其；僵硬地n.死尸；流浪汉；过于拘谨的人；吝啬鬼；醉鬼stiff brush硬刷stiff stand刚性机座stiff-armvt.伸直手把 ... 推开n.伸直手推开stiff paste浓膏stiff shell硬壳层stiff pupil[医] 强直性瞳孔, 阿盖耳·罗伯逊氏瞳孔Stiffing Rib加强筋stiff piston刚性活塞stiff girder加劲梁stiff joints[医] 关节强硬

1. The needle catching problem is an old issue that we have ameliorated with stiffer needles and an improved corner cutting procedure, but it hasn't been fully solved, apparently.
   针头抓紧的问题是个老问题了，我们用更硬的针头改善并改进了切割步骤，显然还没有完全解决。