shades of grey
"灰色的阴影" (表示事物或情况有若干不确定或模糊的方面)
口语·形容复杂或模糊的情况
英文释义
refers to a situation or topic that is not clearly defined or is ambiguous
例句
The issue isn't black and white; there are many shades of grey to consider.
典故来源
源自光学和绘画术语，指灰色深浅层次，后比喻事物复杂、非绝对好坏。