bump up的用法和樣例：
例句
- The national debts of that country are rolling up.
那個國家的國債在不斷地增加。 - Higher living costs have swallowed up our pay rise.
上漲的生活費用已經抵銷了我們增加的工資。 - The grocer's put the price of coffee up again.
這家食品店又提高了咖啡的價格。 - You need more high marks to bump up your average.
你要拿更多的高分才能提高你的平均分。
