prolong

/prəˈlɔŋ/

lengthen in time; cause to be or last longer

中文释义：延长；拖延

The doctor advised him to rest to avoid prolonging his recovery time.

医生建议他休息，以免延长康复时间。

Prolonged exposure to the sun can cause serious skin damage.

长时间暴露在阳光下会导致严重的皮肤损伤。