The ducklings are cheeping.小鸭咻咻地叫着.The ducklings are swimming close to their mother.小鸭子紧挨着母鸭游水.The ducklings plumped into the water.小鸭子扑嗵扑嗵跳入水中.The ducklings have shed their yellow down.小鸭褪了黄毛....
Listen to Monica's conversation with the bellhop.听一下莫尼卡与旅馆侍者的对话.Please have a seat, and the bellhop will be right with you.请坐一下侍者马上就过来.Shall I call the bellhop?我帮您叫行李员好 吗 ?...
The invention relates to a cationic polymer dehydrator for sludge.本发明涉及一种用于污泥脱水的阳离子型聚合物脱水剂.The vibrating centrifugal dehydrator and scraper discharge centrifugal dehydrator are usually used in coal mine industry.振动离心脱水机与...