1：I was attacked by a dog.
我被一条狗袭击。
2：A church designed by the famous architect, Sir Christopher Wren.
著名建筑师克里斯托弗·雷恩爵士设计的一座教堂。
3：We are all alarmed by the rise in violent crime.
我们都对暴力罪案的增加感到忧虑。
by ： 英 [baɪ] 美 [baɪ]
prep.被,由（尤与被动语态动词连用）；通过，使用
adv.（由旁边）经过；（时间）过去；在旁边，在附近
词组短语：by oneself独自地，单独
by and large大体上，总的来说
by and by不久以后
英英释义：by
1: so as to pass a given point.
同义词：past
2: in reserve; not for immediate use
同义词：aside/ away