The soil washed from the hills is silting up the hydroelectric dams.从山上冲刷下来的泥土就要让水电大坝淤塞了。Mud is silting up the stream.泥沙把小河淤塞了.The harbour is slowly silting up.港口正在慢慢地被淤泥堵塞....
These are inherent and apparently permanent and can be propagated vegetatively.这些具有内在的和明显的遗传性,并可以无性繁殖.Conservative ideas, based on history and tradition were emphasized and propagated.基于历史和传统的保守思想得到了加强和宣传.A " vegetative ...