blue smoke

• 蓝烟

blue smoke的用法和样例：

例句

1. I watched the blue smoke drift lazily away on the still air.
   我看见蓝烟在无风的空气中缓慢地飘散开去。
2. The trees were taking on a blue haze in the glorious afternoon sun.
   在阳光灿烂的下午，树木泛着蓝烟。