常見例句用作名詞 (n.)Trichomonad is helminth, have certain infectivity.滴蟲是寄生蟲，具有一定的傳染性。The infectivity and other properties of viruses can be assayed by several methods.病毒的傳染性及其它性質(zhì)可通過幾種方法鑒定。 返回 infectivity