The reactivity of wheat straw soda lignin ( WSSL ) can be improved by demethylation modification.麦草 碱木素在碱催化下经脱甲基改性可提高其反应活性.Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction,...
Computers can instantly retrieve millions of information bits.计算机可以立即检索到数百万条信息。She bent to retrieve her comb from the floor.她弯腰从地上捡起她的梳子。The basis for training relies on the dog's natural instinct to hunt and retrie...
她把厨房门重重地关上，我甚至听到了碟子的震颤声。She slams the kitchen door so hard I hear dishes rattle.桌上放着堆满了糖果的碟子。On the table were dishes piled high with sweets.他把它放在精美的白色碟子里端上了桌。He served it up on delicate white plates....
His dark socks, I could see, had a stripe on them.我能看出他的深色袜子上有道条纹.The book has a diagonal black stripe on the cover.书的封面上有条连接对角的黑斜线.Each white petal had a stripe of red.每一片白色的花瓣上都有一条红色的条纹....
The real Crockett made mistakes and had serious personal problems.真实生活中的大卫.克罗竟然会犯错,也曾有严重的个人问题.Davy Crockett was born on August 17 th, 1786 in eastern Tennessee.大卫?克洛基在一七八六年八月十七日出生于田纳西州东部.Some people say Davy Crockett was...
They must each compose a poem in strict alliterative metre.他们必须每人作一首严格押头韵的诗。Protein molecules compose all the complex working parts of living cells.活细胞中所有复杂的运行成分都由蛋白质分子构成。Most software programs allow you to compose email...
Out on the course you must discipline yourself to let go of detailed theory...在高尔夫球场上，你必须训练自己做到不拘泥于细枝末节的理论。All you ever want to do is go shopping!...你想做的事就只是去购物！She didn't have anyplace to go...她无处可去。People who can&...