This paper advances the preparation method of erucamide by direct ammonolysis of rape oil. sol - vent crystallization.本研究提出菜籽油直接氨解、溶剂脱脂、蒸馏预分离、溶剂结晶提纯制取芥酸酰胺的方法....
鞋子的鞋帮、鞋跟和鞋舌部位都有衬垫，以增加舒适度。The shoe has padding around the collar, heel and tongue for added comfort.我仍然只能根据鞋子的颜色来区分马克和戴夫！I can still only tell Mark and Dave apart by the colour of their shoes!这种鞋子的后跟是拼装式的.This shoe has a ...
Stern also studies and observes the behaviour of babies.斯特恩还研究观察婴儿的行为。He observes carefully but says little.他总是仔细观察,很少说话.He observes keenly but says very little.他观察敏锐,却很少发言....
He had to cancel some engagements because of tiredness.他太累了，不得不取消一些约会。...business-related social engagements.与公事有关的社交约会Broadway was full of loafing thespians in search of next season's engagements.百老汇大街上挤满了闲荡的演员,在寻找...
Girls imitated me. Now I'm trying to imitate a city girl.姑娘们过去个个都模仿我, 可现在呢,我自个儿反而要去模仿城里的姑娘们.You should imitate her way of doing things.你应该效法她做事的方式。Some parrots can imitate sounds and repeat words and sentences.有些鹦鹉能...
我知道这首歌,但记不起歌名.I know this song but I can't call the title to mind.你的名字和 德克斯特·海文 写的那首叫珊曼塔歌名一样 吗 ?Are you the same dexter - haven that wrote a song called samantha?歌名就是“What'syr [ your]TakeonCassavetes”.The song ...