yán​chángYán​cháng HSK4

prolong

延长 (延長) yán​cháng frequency
prolong verb
to lengthen the duration of an event or to delay a deadline or conclusion

To allow for full discussion, the meeting was extended by half an hour.

extend verb
to increase the physical length, reach, or spatial range of something

Engineers plan to extend this highway by another hundred kilometers.

延长 (延長) Yán​cháng
Yanchang place name
Yanchang county in Yan'an, Shaanxi

His grandfather lived in Yanchang County for a long time and has a deep attachment to that land.

Frequency

Movie subtitles
5.75 per million appears in 3% of films
Written text
27.7 per million

Details

HSK 2.0
Level 5
HSK 3.0
Level 4

Sources

Definitions
CC-CEDICT