Definition
This idiom suggests that appearances can be deceptive; something that looks attractive or valuable on the surface may not actually be so upon closer inspection.
比喻外表華麗美好，但實質未必如此。
That new investment project looks very appealing, but remember, all that glitters is not gold.
那個新的投資項目看起來很有吸引力，但記住，並非所有閃閃發光的都是金子。
She soon found that the celebrity life wasn't always as glamorous as it seemed, proving that all that glitters is not gold.
她很快發現名人的生活並不像看起來那麼光鮮亮麗，這證明並非所有閃閃發光的都是金子。
This new restaurant's decor is beautiful, but the food is very ordinary; it's clear that all that glitters is not gold.
這家新餐廳的裝潢很漂亮，但食物卻很普通；顯然，並非所有閃閃發光的都是金子。