congestion

• 名词，指堵塞或过度拥挤的状态；常用于医学语境中表示鼻塞或呼吸道阻塞，也用于交通语境中表示交通拥堵。

A noun referring to the state of being blocked or overcrowded, often used in medical contexts to describe nasal or respiratory blockage, or in traffic contexts.

不可数

1. Nasal congestionB1formalmedical

   A condition where the nasal passages become blocked due to inflammation or excess mucus.

   鼻塞

   • She took a decongestant to relieve her nasal congestion.
   • The cold caused severe congestion in his sinuses.
   • Nasal congestion often makes it difficult to breathe at night.

   同义词blockageobstructionstuffiness

2. Traffic congestionB1formal

   A situation where roads or highways are heavily crowded with vehicles, causing slow movement.

   交通拥堵

   • Traffic congestion in the city center is worst during rush hour.
   • We were stuck in congestion for over an hour.
   • The new bypass reduced congestion on the main road.

   同义词bottleneckgridlockhold upsnarl-uptailbacktraffic jam

3. Network congestionB2formaltechnical

   A condition in data networks where the demand for bandwidth exceeds available capacity.

   网络拥塞

   • Network congestion caused the video call to freeze.
   • The router manages data flow to prevent congestion.
   • High traffic on the server led to congestion and slow response times.

   同义词bottleneckgridlockoverloadsaturationtraffic jam