It will exploit weaknesses and failures in hygiene practices, be they down to lack of knowledge, to sloppiness, or even downright indifference to the risk.

病毒将揭漏我们卫生习惯中的缺点和弱点，如缺乏知识，随意倾倒污物，甚至完全的对危险的无视。

youdao

The indifference curves of expected values and standard deviations of net income are adopted to simulate the different risk attitudes of different decision-makers.

使用收益的期望值—标准差无差异曲线与相应的效益函数来描述决策者不同的风险态度；

youdao

The utility is the same and yet it is attained at a higher risk and a lower reward so the indifference curve is lower.

FORBES: Innovation In Investment Vehicles

Wherever evil struck, the righteous stood up, even at the risk of their own lives, against the violence of killers and the indifference of many others.

UNESCO: UN International Holocaust Remembrance Day 2013