硝烟的英文：
smoke (from guns)

参考例句：

After fumes and rock dust have settled, the rock brought down by the explosion is removed, often on conveyor belts.
等硝烟和尘埃散尽后，再将炸下的岩土运出去，通常是用传送带。

The flames and smoke of war had dissipated.
战争的烽火硝烟已经消散。

Not long afterwards the U.S. President Truman made his very belligerent "State of Union Message"
没过多久，美国总统杜鲁门即提出了弥漫“冷战”硝烟的“国情咨文”。

smoke是什么意思：
n.烟；抽烟
v. 吸烟；冒烟；弥漫；以烟熏

to billow the smoke
使浓烟滚滚

Most people who smoke began smoking in their teens.
多数烟民从十几岁时就开始抽烟了。

Would you prefer the smoking or non-smoking section?
你想要吸烟区还是无烟区的位子？

There was a drift of smoke above the trees.
树林上空飘浮着一股烟。

The smoke billowed over the field.
烟波涛般滚滚向前越过原野。

guns是什么意思：
n. 枪；炮；枪状物；鸣放；烟斗；职业杀手
v. 用枪射击；加大油门快速前进；向...开枪

You undercharged the gun.
你炮中火药装填不足。

pull gun on sb.
拔枪对准某人

The big guns boomed in the distance.
远处大炮声隆隆作响。

electric heat gun
电热枪

Handle that gun with caution.
拿那支枪要小心。