We cannot afford to be complacent about our health.

我们对我们的健康自满不起。

《柯林斯英汉双解大词典》

Often, we can become complacent in our lives, going through a routine and not addressing things that bother us or make us unhappy.

我们常常在生活中变得自满，循规蹈矩，不去对付烦扰和让我们不高兴的事情。

youdao

Our modern sentimentality, which displays itself with complacent indiscretion

我们现代人的多愁善感不免流露出自得意满的轻率， displays itself with complacent indiscretion，应该是轻率地表露自身，且以此沾沾自喜。或者说我们现代人惯于轻率地……。

youdao

But in some areas we are, I fear, running the risk of becoming rather lazy and complacent in our thinking.

BBC: News | UK Politics | Paddy Ashdown's speech

However, as business leaders, we often get complacent with our incentives.

FORBES: What Business Leaders Can Learn From TED2013

As increasing global competition put pressure on the American industry, we became complacent, believing that our historical strengths in innovation would ensure that new clean energy technologies would continue to be invented here.

FORBES: Beyond 'Buy American': The U.S. Needs a Clean Energy Strategy