brighten upOur editors are putting together more complete content — check back in about 20 minutesbrighten upbrighten up — verb動詞1. to make or become brighter or more cheerful1.動詞釋義to make or become brighter or more cheerful例句The new paint will brighten up the room.2. to become happier or more lively2.動詞釋義to become happier or more lively例句She brightened up when she heard the good news.