Corn stalk is composed of cellulose, hemicellulose and lignin.玉米秸秆主要由纤维素 、 半纤维素、木质素组成.Cellulose and hemicellulose could be used to produce fuel alcohol.纤维素、半纤维素可用来生产燃料酒精,而木质素往往被废弃.The corn stover mainly consists of cellu...
Just pipe down and I'll tell you what I want.别说了，我来告诉你我想要什么。You could waste your whole life on a pipe-dream.白日梦会荒废你一生。He nodded and puffed on a stubby pipe as he listened.他边听边点头，还吸着一支粗短的烟斗。...
The price of the Saturday edition is going up with effect from 3 November.自11月3日起，周六版价格将上调。Saudi Arabia, in company with some other Gulf oil states, is concerned to avoid any repetition of the two oil price shocks of the...