This paper summaries the function and benefits of Yellow River dyke strengthening by desilting.概述黄河放淤固堤的作用及效益评价.The computer prepares summaries of all the calls it receives.计算机能为它接到的全部电话作摘要.Recent progress on asymmetric ...
He was a tubby little man in his fifties, with sparse hair.他50来岁，头发稀疏，身材矮胖。Many slopes are rock fields with sparse vegetation.许多山坡都是石头地，植被稀疏。The sparse line of spectators noticed nothing unusual.那一排稀稀落落的观众没留意到任何不寻常之处。...