重要
noun [集合/集体]团，块；大量，许多；（常指混乱的）一群，一堆；大量的东西；群众，平民百姓；大多数，多数；质量；（尤指罗马天主教的）弥撒；弥撒曲
A mass of something is a large amount of it.
许多 • She had a mass of auburn hair. 她有一头浓密的棕发。
adjective [原级]民众的，大量的
Mass is used to describe something which involves or affects a very large number of people.
人数众多的• ...ideas on combating mass unemployment. …对付失业人数众多的方法。
verb [vt. 及物动词]（使）聚集，（使）集结
When people or things mass, or when you mass them, they gather together into a large crowd or group.
聚集
单词造句: