形容詞 sterile:

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

1. The high risk of infection put a premium on the use of sterile needle.
   由於受感染的風險很大，無菌注射針的使用受到了重視。
2. The high risk of infection puts a premium on the use of sterile needles.
   由於受感染的風險很大，無菌注射針的使用受到了重視。
3. An operation chamber should be completely sterile.
   手術(shù)室應該完全無菌。
4. Medical tests showed that he was sterile.
   醫(yī)學檢查表明他沒有生育能力。