1. The building has new ducts for better air circulation.
这栋建筑安装了新的管道，以改善空气流通。

2. Workers checked the ducts before starting the heating system.
工作人员在启动供暖系统前检查了管道。

3. The air ducts need regular cleaning to keep the system efficient.
空气管道需要定期清洁，以保持系统高效运行。

A: The ducts in this office look old.
A：这个办公室里的管道看起来很旧。

B: Yes, they need to be repaired soon.
B：是的，它们需要尽快维修。

1) 指建筑物中用于输送空气的管道

2) 指输送液体或气体的导管

3) 指生物体内传递物质的管道结构

1. 管道；导管；用于输送空气、气体或液体的通道。

e.g. The ducts carry fresh air throughout the building.
这些管道将新鲜空气输送到整栋建筑。

2. （人体或植物中的）管道结构，用于传递特定物质。

e.g. Some animals have special ducts for carrying fluids.
一些动物具有输送液体的特殊管道。

noun

1. Channels or tubes used to carry air, liquids, or other substances from one place to another.

Synonym: pipes, channels, tubes