| 堵塞 | dǔ sè | to clog up; blockage | |
| 堵车 | dǔ chē | traffic jam; (of traffic) to get congested | |
| 围堵 | wéi dǔ | to blockade; to surround; to hem in | |
| 围追堵截 | wéi zhuī dǔ jié | encirclement, pursuit, obstruction, and interception (idiom) | |
| 观者如堵 | guān zhě rú dǔ | The spectators formed a solid wall of humanity. (idiom) |
| 1 | The traffic in the city center is heavily congested. | |
| 2 | The city is becoming more and more congested. | |
| 3 | The traffic in the city is very congested. | |
| 4 | Traffic jams are commonplace on my commute to work. | |
| 5 | The traffic in this city is very congested. |
