水可以是液体 、 固体或气体.Water can be liquid, solid or gas.任何通过它的液体或气体将呈流线型的流动.Any liquid or gas passing it will have streamline flow.他们不受有毒烟雾或气体影响.They are not affected by polsonous fumes or gases....
Collins was in a foul mood even before the interviews began.柯林斯在采访还没开始时就暴躁不安起来。This material has been extracted from "Collins Good Wood Handbook".这些材料摘自《柯林斯优秀木材手册》。For details visit our website at www.cobuild.collins.co....