有很多新旧不一的船待售。There are many boats, new and used, for sale.橱窗里有架莱卡相机待售。There was a Leica camera for sale in the window.预计这幅画将售得两三百万英镑。The painting is expected to fetch between two and three million pounds....
Check the oil at regular intervals, and have the car serviced regularly...定期检查汽油，并对车辆进行定期维护。I had had my car serviced at the local garage...我已经把我的车送到当地汽修厂检修了。You can go anyplace to get the car serviced.你可以去任何地方给汽车作检修。Pol...
P点和Q点分别表示该质点的两个位置.Points P and Q represent two positions of the particle.碰撞并不往往使质点减速.Collisions need not always act to slow particles down.我们可标记占据某个小领域的质点群.We label a group of particles occupying a small neighbourhood....