silent majority

1. N-SING-COLL If you believe that, in society or in a particular group, the opinions of most people are very different from the opinions that are most often heard in public, you can refer to these people as the silent majority. 沉默的大多數; 不公開表達自己意見的大部分人

The silent majority of supportive parents and teachers should make their views known. 表示支持的父母和老師們是沉默的大多數，他們應該公開表達他們的觀點。