1. The cave was filled with a strong mephitis that made it hard to breathe.
洞穴里充满了强烈的恶臭气体，让人难以呼吸。

2. Workers avoided the area due to the mephitis rising from the swamp.
工人们因沼泽中升起的恶臭气体而避开该区域。

3. The old mine released mephitis that warned explorers to stay away.
旧矿井释放出的恶臭气体警告探险者不要靠近。

A: Did you notice the mephitis near the river?
A：你注意到河边的那股恶臭气体了吗？

B: Yes, it smelled terrible, probably from decaying plants.
B：是的，气味很难闻，可能是腐烂植物造成的。

1) 指腐败或地下来源的恶臭气体

2) 用于描述有毒或令人不适的空气环境

3) 常见于地质或自然环境中的气体现象

1. 恶臭气体；腐败气体

e.g. The mephitis from the marsh spread across the field.
沼泽散发出的恶臭气体扩散到田野中。

2. 有毒或令人不适的气体环境

e.g. The explorers encountered mephitis in the abandoned cave.
探险者在废弃洞穴中遇到了恶臭气体。

noun

1. A strong, foul-smelling gas or vapor, often produced by decay or underground natural processes.

Synonym: stench, vapor, effluvium