里里外外三层的人群看到显示屏上的画面似乎全都惊呆了。A crowd three deep seemed paralysed by the images on these monitors.今天航班的详细情况都列在显示屏上。The details of today's flights are displayed on the monitor.让我看看，我们的航班号是CX360，显示屏上显示我们的航班准时到了。Let's...
石蕊: 从几种地衣类植物中获取的带色有机化合物的混合物.Litmus: Mixture of coloured organic compounds obtained from several species of lichens.地衣类植物生长速度慢,有好几年的寿命.其生长依赖于霉菌和海藻的共生.Lichens, which grow slowly and live for many years, result from fungi a...