She was in a peeve over it.她对这很气恼.Annoy irritate bother irk vex provoke aggravate peeve rile.Annoy使生气,使烦恼,打搅,干扰.Grammatical mistakes are his pet peeve.他总是犯语法错误....
Crossing over The exchange of material between homologous chromatids by the formation of chiasmata.交换:同源染色单体之间形成交叉时遗传物质的交换现象.The exchange of prisoners of war was one of the key elements of the UN's peace plan.交换战俘是联...