1.accountable for 負責
Public officials can finally be held accountable for their actions.
終于要對政府官員實行問責了 。
2.in a decade 十年內
Power generation fell for the first time in a decade.
發電量十年來首次出現下降 。
3.pay down 償還;支付
I used it to pay down some credit cards.
我用來付信用卡帳了 。
4.social media 社交媒體
We have all witnessed the power of social media.
我們見證了社交媒體的實力 。