Definition (态度)
Used to express a dismissive attitude, indicating that one does not consider something to be important or worthy of concern.
谁在乎？（表示不在意）
"I think we should reconsider this plan." "Who cares? We've already invested so much time."
「我觉得我们应该重新考虑这个计划。」「谁在乎？我们已经投入了这么多时间。」
"She might be unhappy with this decision." "Oh well, who cares? We have more important things to deal with."
「她可能会对这个决定不满意。」「哦，谁在乎？我们有更重要的事情要处理。」
"What if we miss the deadline?" "Who cares? We've done our best anyway."
「如果我们错过了截止日期怎么办？」「谁在乎？反正我们已经尽力了。」