精选优质文档-倾情为你奉上1. 当被要求回答这个难题时，我不知所措。(be at a loss)I was at a loss (what to do) when I was asked to answer this difficult question. 2. 外边有一大群人集合反对战争。(protest against)There is/ was a large crowd outside protesting against the war.3.那所寄宿学校的部分学生向校长抗议了学校食堂的糟糕伙食。(protest)Some students in that boarding school protested against the bad food in the school canteen to the principal/ headmaster.4. 布朗博士已来到我们城市做巡回演讲了。 ( on a tour)Dr. Brown has come to our city on a lecture tour.5. 他对古典音乐充
