金发细腰的她太引人注目了，他们很难不注意到她。Blonde and slender, she was too striking to escape their attention.如果你不注意的话，孩子们往往会不重视他们的家庭作业。If you are not careful, children tend to neglect their homework.她不注意个人卫生。She's careless about her h...
甲烷和丙烷是烷烃。Methane and propane are alkanes.某碳氢化合物已知可能是烯烃或是烷烃.A hydrocarbon was known to be either an alkene or alkane.直链烷烃使机器的 “ 爆震 ” 问题更加严重.The straight - chain alkanes exacerbate the problem of engine " knock "....
The letter was handwritten, in a hasty, barely decipherable scrawl.这封信是仓促手写而成，潦草得几乎无法辨认。This letter must be from Frank; I recognized his scrawl.这封信一定是弗兰克写来的, 我认得他那潦草的笔迹.His signature was an incomprehensible scrawl.他的签字是令...