They also play an important role in immune reactions.它们在免疫反应中也起着重要的作用.Nonbiological degradation processes play an important role in the dissipation of many pesticides in soil.非生物降解过程在消除土壤中的许多农药方面起着重要的作用.Variational princ...
他傲慢无礼地朝元先生冲过来，面露怒容。He came insolently towards Mr. Won, his features set in a scowl.“哦，我们很乐意！”南希面露喜色，大声说道。"Oh, we'd love to!" cried Nancy, her face brightening.他们匆匆地走来走去，一言不发，面露焦急之色。They hurried about in dead silence...