让我们用板把边门钉上.Let's board the side door up.他听见边门的响声.He heard the side gate slam.蓓丝经过几次三番畏畏缩缩之后, 终于光明正大地从边门进去了.Beth , after two or three retreats, fairly got in at the side door....
The new Metro is designed to run on unleaded fuel.新的地铁系统设计为使用无铅燃料。The metro is efficient and spotlessly clean.地铁非常快捷，而且一尘不染。Can you reach the park by metro?你可以乘地铁到达那个公园 吗 ?...
Heat causes the expansion of gases.热使气体膨胀。The emission of gases such as carbon dioxide should be stabilised at their present level.二氧化碳等气体的排放应该稳定在当前水平。Gases and digestive around in your empty stomach and before you know ...