此反应得到的产物为二烷基苯基丙二酸酯的碱金属盐衍生物.The immediate products of this reaction are alkali - metal derivatives of dialkyl phenylmalonates.以丙二酸做为调控剂,得到纤维状的碳酸钡晶体.Barium carbonate crystal with fiber structure was prepared from malonic a...
蜂鸟发现花蜜和花粉是很有营养的.Hummingbirds have discovered that nectar and pollen are very nutritious.昆虫为花的色彩 、 香气和花蜜所吸引.Insects are attracted to flowers by their colour, scent and nectar.花蜜和花粉是很有营养的.Nectar and pollen are very nutriti...
We cannot guarantee the punctual arrival of trains in fogy weather.雾天我们不能保证火车准时到达.Liu Lichang is an ancient street. It is famous for old fogy.琉璃厂是一条古老的街, 它以古董著名.I don't want to sound like I'm some old fogy.我不想让...
Altruistic spirit should be cultivated by us vigorously.利他的精神是我们应该努力培养的。Nations are governed by self - interest, but they prefer to believe that their aims are altruistic.各国都只考虑自己的利益, 却总愿意相信自己的目标是大公无私的.Foster the good qu...
The evaluation of conduct involves some amount of generalization.对操行的评价会含有一些泛泛之论。In most of the residence halls we visited, rules prohibit disorderly conduct.在我们走访的学生宿舍里，大多明令禁止胡作非为。The newspaper breached the code of cond...