The trickling stream glistened in the sunlight.涓涓溪流在阳光下闪闪发亮。The nitrogen source's effects on the purification performance of air phase trickling biofilter are significant.氮源对于气相生物滴滤床的净化效果有显著的影响.The trickling filter ...
Only the united struggles of the people of the world can check aggression and save peace.只有全世界人民的团结斗争能制止侵略,挽救和平.But his struggles only brought him more troubles and more enemies.然而奋斗的结果只给他招来了更多的烦恼和更多的敌人.Sober struggles i...