Cucurbituril is a macrocyclic cavitand compound with two portals.葫芦脲是一种具有大环空腔、两端开口的葫芦状分子.All these novel macrocyclic compounds were confirmed with elemental analysis, IR, 1 HNMR and MS.这些新型大环化合物均经元素分析 、 IR 、 1HNMR、MS等证实其...
Her eventful life included holding senior positions in the Colonial Service.她一生经历丰富，曾在殖民服务局担任高级职位。It was an eventful and controversial race.那是一场充满变数而且颇具争议的比赛。He's had an eventful life.他一生中有很多大事....
Drinking a lot helps the kidneys do their job.多饮水有助于肾脏正常工作。Blood enters the kidneys via the renal artery.血液通过肾动脉流进肾脏。The function of the kidneys is to excrete wastes from the body.肾的功能是排泄人体里的废物....