Mr. Cruncher reposed under a patchwork counterpane, like a Harlequin at home.克朗彻先生盖了一床白衲衣图案的花哨被子, 像是呆在家里的丑角.The evening was just cool enough to make it worth while to pull up the counterpane.夜晚很凉爽,得把床罩揭起来盖上身子....
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...