风险不可能完全消除，但可以通过防范和培训来降低。You could never eliminate risk, but preparation and training could attenuate it.必须采取防范措施阻止偷盗行为。Precautions had to be taken to prevent pilfering.警方及时采取防范措施，避免了可能发生的骚乱。The police were able to take p...
Several long-awaited videos will finally arrive in the shops this month.几部让人翘首企盼的录像片终于将在这个月到货。He was still twitchy and we awaited Ann's return anxiously.他仍然焦虑不安，我们担心地等着安回来。For many, their long-awaited homecoming was...
Starch subjected to dry heat is changed to dextrine ( C 6 H 10 O 5 ), British gum.淀粉一受干热会变成浆糊 ( C6H10O5 ), 也叫英国浆糊.Starch degradation and then become a dextrine.淀粉降解之后就成为糊精.Dextrine subjected to heat plus an acid or a fer...
China boasts the world's earliest observatory, built in Nanking in 1385 in the Ming Dynasty ( 1368 A . D . - 1644 A . D . ), three centuries ahead of the Greenwich Observatory built in Britain in 1670.中国建有世界上最早的气象台....
I often doodle when I'm on the phone.我打电话时常常信手乱画。This made him look like a doodlebug, so I began calling him'Doodle.这使他看上去像一只幼虫, 所以我开始叫他 “ 嘟嘟”.We sang these lines to the tune of Yankee Doodle.我们用扬基歌的曲调唱这几句歌词." ...