mainly
/ˈmeɪn.li/
used to indicate the most important reason, part, or thing.
中文释义：主要地
The decline was mainly caused by rising production costs.
这一下降主要由生产成本上升导致。
/ˈmeɪn.li/
used to indicate the most important reason, part, or thing.
中文释义：主要地
The decline was mainly caused by rising production costs.
这一下降主要由生产成本上升导致。