1.accountable for 负责

Public officials can finally be held accountable for their actions.
终于要对政府官员实行问责了Z54XRI*GUB]e+EstB7G。

2.in a decade 十年内

Power generation fell for the first time in a decade.
发电量十年来首次出现下降rP!pNRp@G#Ol*。

3.pay down 偿还；支付

I used it to pay down some credit cards.
我用来付信用卡帐了,Ff&2)o+5hxwK(D8h。

4.social media 社交媒体

We have all witnessed the power of social media.
我们见证了社交媒体的实力W.aqQz0ciXx7uwMJjN。