You can change back unused dollars into pounds at the bank.
你可以到银行把没有用掉的美元兑换回英镑。
That one mistake left him thousands of pounds out of pocket.
那一次失误让他损失了数千英镑。
The bomb was packed with several pounds of high explosive.
这枚炸弹装有几磅烈性炸药。
Five pounds doesn't buy much nowadays.
如今五英镑买不到多少东西了。
I've lost six and a half pounds since I started my diet.
从节食以来，我体重已减轻了六磅半。
The winner will receive ten pounds' worth of books.
获胜者将得到价值十英镑的书籍。