vapor

• 指物质以气态或雾状形式存在，尤指在室温下通常为液体或固体的物质所形成的气体或悬浮微粒。

A noun referring to a substance that is in the form of a gas or mist, especially one that is normally liquid or solid at room temperature.

不可数

1. Gaseous state of a substanceB1formal

   A substance in the form of a gas, especially one that is normally liquid or solid at room temperature.

   蒸气

   • Water vapor rises from the hot pavement after the rain.
   • The steam engine uses water vapor to generate power.
   • Vapor can be seen coming from the boiling pot.

   同义词exhalationgashazemiststeam

2. B1formal

   A visible suspension of fine particles of a liquid in the air, like mist or fog.

   雾气或薄雾

   • A thin vapor hung over the lake in the early morning.
   • The vapor from the humidifier made the room feel damp.
   • The cold air turned his breath into a white vapor.

   同义词foghazemist