1.simulation n. 仿真;模拟;模仿;假装
Training includes realistic simulation of casualty procedures.
训练包括伤亡处理程序的实际模拟 。
2.congestion n. 拥挤;拥塞;充血
The problems of traffic congestion will not disappear in a hurry.
交通堵塞问题不会很快消失 。
3.visualization n. 形象化;清楚地呈现在心
As we have seen in previous chapters, visualization methods are varied.
我们在前几章已经了解到,可视化方法是多种多样的 。
4.tractor-trailer n. 牵引式挂车
High winds whipping across the northeast toppled this tractor-trailer Monday.
周一,在美国东北部,强风把一辆大货车吹倒在地 。