CR-2 、CR-42 、AC不能利用蔗糖和棉子糖, 但CCH却与之相反.Strain CCH is able to metabolize sucrose and raffinose, and the others are not.酶底物研究表明,酶水解菊粉, 但不水解棉子糖,水解蔗糖活性较低.The enzyme has no effection on raffinose, but could hydrolyze inulin and...
When whitewashing the wall, he painted with a roller in his hand.刷墙的时候, 他手里拿个辊子,挥舞着胳膊.He got himself dirty from whitewashing the wall.他刷房时沾了一鼻子白灰.Some others whitewashing a house.另外一些农民正在粉刷一所房子....
那匪徒龇牙咧嘴地狞笑.The bandit bared his teeth in an insolent smile.她看见那个奇耻大辱就站在她的面前, 带着狞笑看她, 讥笑她.She could see only outrage and humiliation, leering at her, mocking her.吴荪 甫 狞笑了.The thought brought a sardonic smile to Wu Sun - f...
原来所说的不明飞行物现在已证实是卫星.The previously unidentified objects have now been definitely ascertained as being satellites.从不明飞行物上发出奇特的光.A singular glow came from the unidentified flying object.不明飞行物常常被解释为超自然现象.UFOs are often expla...
Hotels operate a collection service for their guests from the airports.宾馆为客人提供机场接机服务。Trains will operate from Waterloo with a pick-up stop at Ashford.火车从滑铁卢站出发，途中会在阿什福德站停靠上人。They now own and operate a farm 50 miles south...