The persistent haze over many of our cities is a reminder of the polluted air that we breathe.

在许多城市，持续不断的雾霾提醒着我们，我们正呼吸着受污染的空气。

For a long while she had been oppressed by the indefiniteness which hung in her mind, like a thick summer haze, over all her desire to make her life greatly effective.

很长一段时间以来， 她一直被笼罩在她脑海中的不确定性所压迫， 就像浓浓的夏日阴霾， 使她的生活变得非常有效。