escape的近义词有：escape, avoid,escape, flee, fly, get away, run away。下面这两个动词都有"躲避危险"的含义：escape：多指避开实际的威胁，暗示威胁或危险正在迫近。avoid：侧重有意识地躲避开要冒险或有危险的事物或情况。下面这些动物或短语动词都有"逃跑，逃脱"的含义：escape：侧重逃跑的结果，不强调逃跑时的匆忙或危险情况。flee：书面用词，侧重指逃跑时动作匆忙，多含惧怕...
许多种蓝藻有固氮的能力.Among the blue - green algae are many species of nitrogen fixation.菌根起着固氮和贮氮的作用.Mycorhizae perform the function of nitrogen fixation and storage.根瘤菌是生物固氮的能手.Nodule bacteria are very good at biological nitroge...