四级In the past our own blocks of flats have been associated with the lower-income groups and they have lacked the obvious provisions, such as central heating, constant hot water supply, electrically operated lifts from top to bottom, and so on, as well as such details, important notwithstanding (然而), as easy facilities for disposal of dust and rubbish and storage places for baby carriages in the ground floor, playgrounds for children on the top of the buildings, and drying grounds for washing.

过去，我们自己的单位与低收入群体有联系，缺乏明显的规定，如集中供暖、持续热水供应、电动升降机等，以及这些细节，尽管很重要(然而), 作为处理灰尘和垃圾的简易设施，一楼的婴儿车存放处，建筑物顶部的儿童游乐场，以及洗涤的干燥场。

1995年6月大学英语四级(CET-4)真题

四级When the auto enters the highway system, a retractable (可伸缩的) arm will drop from the auto and make contact with a rail, which is similar to those powering subway trains electrically.

当汽车进入高速公路系统时，一个可伸缩的(可伸缩的) 手臂会从汽车上掉下来，与轨道接触，这类似于为地铁列车供电。

2002年1月大学英语四级(CET-4)真题

四级Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer.

一旦连接到轨道上，汽车将由系统供电，车辆的控制将传递给中央计算机。

2002年1月大学英语四级(CET-4)真题