Both the free hydroxyl groups readily undergo esterification.两个自由羟基,都容易酯化.The chemical method include treating with sulfuric acid, saponification, acylation, esterification, etc.化学方法包括酸洗法 、 皂化法 、 酰化法和酯化法等.Iso - army gall...
压缩空气的喷吐使飞机的左右和前后都能保持稳定。Jets of compressed air gave the aircraft lateral and directional stability.高高的烟囱 喷吐 出黑烟.Tall chimneys belch [ vomit ] forth black smoke.工厂的烟囱向空中喷吐着浓烟.The factory chimneys puff dense smoke into the ...
He lapsed into long silences or became offensively off-hand...他要么陷入长时间的沉默，要么变得简慢无礼。I thought his glance at me had been offensively bold.我觉得他对我的瞥视唐突无礼。He smelled offensively unwashed.他很脏,散发出难闻的气味.The group who had been sh...
If you get irritated by other people's anger, apathy, ignorance, bitterness, or insecurities, be thankful.如果别人的愤怒, 冷漠, 无知, 苦楚或是不安使你不高兴时, 要心存感激.It's the people with insecurities who make life difficult.就是那些没有安全感...