impartial

not supporting one person or group more than another 公正的；不偏不倚的；中立的 SYN neutral, unbiased
an impartial inquiry/observer
公正的调查／观察者
to give impartial advice
提出不偏不倚的建议
As chairman, I must remain impartial.
作为主席，我必须保持中立。