Hydrogen is a one - valence element.氢是一价的元素.Valence is a sleepy little town just south of Lyon.瓦朗斯是里昂南面一座寂静的小镇。Every element tends to satisfy both its primary and secondary valence.每一元素倾向于既满足它的主价又要满足它的副价....
我们在那艘游艇上四处看了看，检查了它的系索和应急装置。We made a tour of the yacht, checking lashings and emergency gear.把船固定在缆柱, 系索拴, 或夹板上.To supply , support , secure, or strengthen with a cleat....
She disapproved of her son’s indiscriminate television viewing.她不赞成儿子不加选择地收看电视。At the time, Arnold had disapproved of such levity.那时候的阿诺德对这种轻浮行为很看不惯。She disapproved of her son's indiscriminate television viewing.她不赞...
A juridical precedent is nothing but " authenticated custom ".司法惯例只不过是 “ 权威的惯例 ” 罢了.Juridical translation : contracts and judicial writings.合同和司法的著作.Person natural or juridical entities such as individuals, associations,...
She instructs music once a week at a middle school.她在中学每周教一次音乐课.She instructs a class in chemistry.她给某班学生上化学课.Dr. Williams instructs us in botany.威廉博士教我们植物学.Joseph instructs a class in woodwork.约瑟夫教一个班木工课。...
The evening show was terrible, with hesitant unsure performances from all.晚上的演出很糟，所有人都缩手缩脚，显得很不自信。Scientists are becoming increasingly unsure of the validity of this technique.科学家们越来越拿不准这一技术是否正当合法。Fifty-two per cent were...