英语翻译Since,the percentage of wound infection increased as the duration of operation increased,from 43 % atless than 60 min,up to 57% at more than 90 min intervals 这句中since抬头的意思?

英语翻译英语翻译：The department of craetive design.semir.since 1996. 英语翻译since they ripen off the vine应该怎么翻译? 英语翻译since …… 英语翻译it is 2 years since I bought the book.要求since翻译出来呀.Thank you 英语翻译democracy has already survived the huge television--led decline in circulation since the 1950s 英语翻译RT还有：popular since the mid 70sintroduces in the mid 80s Since the focus since the dawn of been lonely since the since the dawn of EVER SINCE THE WORLD Since the land of since the stone since the seventies 翻译 Increasing from approximately 10 percent in 1920 to 15 percent in 1935,China's birth rate then plunged to a low of just 5 percen in the 1940s.请帮忙分析一下以上句子的句型结构 英语翻译Lonely was seeing his daughter only twice a week since the divorce. 英语翻译( )future,there may be less ice in the seaA,inB,fromC,onD,since 英语翻译The other boy,who suffered minor injuries,has since been released.