Ketenes, notably dimethyl ketene, readily undergo oligomerization and polymerization.烯酮, 特别是二甲基烯酮, 很容易齐聚和聚合.A notably short, silver-haired man, he plays basketball with his staff several times a week.他个子明显较为矮小，一头银发，每周都会和...
It is only the sensational that sells news magazines.只有轰动性的事件才能促进新闻杂志的销售。The company buys and sells about 600,000 barrels of oil a day.该公司每天买卖约60万桶石油。The co-op sells the art work at exhibitions.这家合作社在展览会上销售艺术品。...
在被占领期间法国思想界受到了压制。Intellectual life in France was smothered by the occupation.他们对不愉快的想法不予理会，其结果仅仅是压制了这些想法。By pushing aside unpleasant thoughts they merely repress these thoughts.海伦一直在压制心里的自杀念头。Helen had been struggling ag...
你得知道站在哪里观察角度比较理想。You have to know where to stand for a good viewpoint.养育孩子的现实经常与浪漫的理想大相径庭。The reality of mothering is frequently very different from the romantic ideal.城市公园是理想去处，那里几乎一年四季鲜花盛开。Town gardens are ideal becaus...