mainly

1. ADV You use mainly when mentioning the main reason or thing involved in something. 主要地

The stock market scandal is refusing to go away, mainly because there's still no consensus over how it should be dealt with. 此次股市醜聞歷久不散，主要是因爲在此事如何処理上尚無共識。

2. ADV You use mainly when you are referring to a group and stating something that is true of most of it. 大部分地[ADV with group]

The African half of the audience was mainly from Senegal or Mali. 觀衆中的一半非洲人主要來自塞內加爾或馬裡。