The cold, misty air felt wonderful on his face.雾蒙蒙，寒冷的空气使他脸上感觉很舒爽。The volume of scheduled flights is straining the air traffic control system.定期航班的数量正让空中交通指挥系统不堪重负。The outside air was heavy and moist and sultry.外面的空气沉滞、潮...
The inves-tigation was undertaken primarily to mollify pressure groups.展开调查主要是为了安抚那些压力集团。They have undertaken a reappraisal of pupils'needs.他们已经开始重新评价学生的需要.All neglected tasks are being undertaken.百废俱兴....