lā​cháng

prolong

拉长 (拉長) lā​cháng
prolong verb
to extend the duration, time period, or spatial span of something

We need to extend the project deadline by another month.

stretch verb
to physically pull or extend an object to make it longer

He stretched the rubber band hard.

Frequency

Movie subtitles
2.03 per million appears in 1% of films
Written text
2.93 per million

Sources

Definitions
CC-CEDICT