她对时尚潮流毫不在乎。

She ___couldn't ___care ___less about fashion trends.

经理对员工的投诉漠不关心。

The manager ___couldn't ___care ___less about employee complaints.

他们根本不在乎明天是否下雨。

They ___couldn't ___care ___less if it rains tomorrow.