sterile

形容词 sterile:

1. incapable of reproducing
   同义词：unfertile, infertile
2. free of or using methods to keep free of pathological microorganisms
   同义词：aseptic
3. deficient in originality or creativity; lacking powers of invention
   同义词：unimaginative, uninspired, uninventive

1. The high risk of infection put a premium on the use of sterile needle.
   由於受感染的风险很大，无菌注射针的使用受到了重视。
2. The high risk of infection puts a premium on the use of sterile needles.
   由於受感染的风险很大，无菌注射针的使用受到了重视。
3. An operation chamber should be completely sterile.
   手术室应该完全无菌。
4. Medical tests showed that he was sterile.
   医学检查表明他没有生育能力。