prevent的名词？
prevent的名词？ 名词是preventing，中文意思是n. 预防，防止 Until now scientists had very little clear evidence about the drug's role in preventing more serious effects of infection.到目前为止，科学家们几乎没有该药物在防止更严重的感染后果的功能的明确证据。 prevent名词prevention prevent v.阻止;阻碍;阻挠...