固体微粒是从溶液中过滤出来的.The solid particles were filtered from the solution.物质是由叫做分子的微粒组成的.Substances consist of small particles called molecules.这些火焰造成了对流漏斗，把许多微粒抛向上层大气。These fires create convection funnels, and throw a lot of p...
With these extras your PC will become the all singing, all dancing box the salesman claimed it would be.有了这些外加设备，你的电脑就成了推销员口中的技术先进，功能齐全的盒子了。We need a thousand extras for big crowd scene.在拍摄群众大场面时,我们需要上千名临时演员.There are no...