This article introduced a method for preparing α - chloro - isobutylaldehyde , in order to explore a practical chloration of oxo - compound. 本文介绍了制备氯代异丁醛的方法, 其目的在于探索羰基化合物的一种实用的氯代方法.
The pernicious effect of this advertising on children is a problem that we ignore at our peril.这则广告将对孩子有潜移默化的坏影响，我们置之不理，风险将由我们自己来承担。Ignore it at your peril...无视该问题要自担风险。For some Javanese attacks placed Palembang in dire ...
Matthew had no drive. He coasted along on his good looks.马修没什么雄心大志，就凭着自己的长相混饭吃。I switched off the engine and coasted round the corner.我熄掉引擎，靠惯性转过弯去。Ivan Lendl coasted to a 6-3, 6-2, 6-3 victory over Roger Rasheed.伊万·伦德尔以...
Food is made up of carbohydrates, proteins and fats.食物由碳水化合物、蛋白质和脂肪构成。Insects are made up of tens of thousands of proteins.昆虫由数万种蛋白质构成。These proteins stimulate the production of blood cells.这些蛋白质会刺激血细胞的产生。...