营火的烟雾悬在空气中。

Smoke from the campfires ___hung in the air.

烟雾像致命的云一样悬在城市上空，导致许多健康问题，如肺病和癌症。

The smog ___hangs over the cities like a deadly cloud, resulting in many health problems like pulmonary diseases and cancer.

雨后，花园里弥漫着花香。

The scent of flowers ___hung in the garden after the rain.