1.footprint n.腳印
Perhaps you're trying to reduce your carbon footprint.
或許你是要減少你的碳足跡。
2.circle n.圓圈
The economy is stuck in a vicious circle.
國家的經濟陷入了一個死循環。
3.revenue n.歲入,稅收
Revenue at both yahoo and aol is steadily falling.
雅虎與美國在線的年收益也呈穩步下降趨勢。
4.pile v.堆起;堆疊;放置
A worker throws a computer casing onto a pile.
一個工人將一個電腦外套扔到一個廢物堆上。
5.investment n.投資,投資額;封鎖
Trade and investment will be hurt.
貿易和投資將受到影響。