vi.

1. 變得新鮮；變得精神煥發[（+up）]
   I took a shower to freshen up.

   我淋浴振作一下精神。

2. （風）變強；（天氣）變涼爽

vt.

1. 使新鮮；使精神煥發；使清新[（+up）]

v.

1. make or become fresh.
   ▸ (freshen up) refresh oneself by washing oneself or changing one's clothes.
2. (of wind) become stronger and colder.
3. chiefly N. Amer. top up (a drink).