middle ground
noun
(一般作the middle ground)
1
- an area of compromise or possible agreement between two extreme positions, especially political ones（尤指政治的）中间立场; 中间观点：
each party wants to capture the votes of those perceived as occupying the middle ground.
每个政党都想争取那些被认为是中立者的选票。
2
- the middle distance of a painting or photograph（画或照片）中景。