是地心吸引力使苹果下落.It is gravitation that causes the apple to fall.物体脱手即向地心方向跌落是由于重力吸引的缘故.Anything that is dropped falls towards the centre of the earth because of the pull of gravity.“ 你们连气候或者地心吸力都还没法控制.'You don't ev...
The engine for maglev trains is rather in noticeable.磁悬浮列车的车头是相当值得注意的.We can take the Maglev train to Pudong International Airport.我们可以乘磁悬浮列车去浦东国际机场.The high speed maglev railway is a new - style traffic system.高速磁悬浮铁路是一...
Most of the refugees are camped high in the mountains.多数难民在高山上露宿。They are camped out in tents on the front lawn.他们在门前的草坪上支起帐篷宿营了。After the hike to the river the soldiers camped for the night.士兵们步行到达那条河后露营过夜....