每个学生一学期可能要修四五门课程.A student will probably attend four or five courses during each semester.学校的管理机构一学期开一次会.The shool governing body meets once a term.它可用作一学期的教材.It is designed as a textbook for a one - term course....
Two of history's worst natural catastrophes occurred in 1970.1970年发生了历史上最严重两次自然灾害.The Swiss deposits contain evidence of such catastrophes.瑞士的遗址里还有这种灾难的证据.Periodic local catastrophes reduce populations.周期性的局部地区的灾变降低...
It took me about two hours to pluck up courage to call.我用了大约2个小时才鼓起勇气打电话。He is full of pluck.他很有勇气.Little companies are known for their pluck and perseverance, even in the face of a recession.小公司的勇气和坚毅是出了名的，即使面对经济衰退也是如此。...
Red Cross officials said they urgently needed bread and water.红十字会官员说他们急需面包和水。Legislation on this issue is urgently needed.这个问题急需立法。All of our hospitals are bursting at the seams; we have to build new ones urgently.所有的医院...