这船常航行于伦敦与悉尼之间.The ship plies between London and Sydney.我身处伦敦市中心比驾船航行于茫茫大海更感到孤单。I feel lonelier in the middle of London than I do on my boat in the middle of nowhere.此后四年中,他往返航行于密西西比河上.For the next four years he steamed u...
这是一桩偶发的事件.It was quite an accident.事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。It became very clear that the incident was not just an aberration, it was not just a single incident.克雅氏病通常以“个例 ” 形式而且在50岁以下的人中偶发.In its common'sporadi...