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on the contrary(与此)相反, 正相反, 恰恰相反
例句：You think you are clever; on the contrary, I assure that you are very foolish.
你自以为很聪明, 相反地, 我确信你很傻。
2.It's the latest evidence of an increase in American drone attacks in recent months, a trend which is adding to the current tension in Pakistan, as Jill McGivering reports.
add to增加, 加强
例句：This lesson adds to the value of the book.
这一课增加了这本书的价值。
Since then, the palace has often been added to, rebuilt and repaired.
从那以后, 那座宫殿不断得到扩建和修缮。
3.The stampede is thought to have happened after a fight broke out in the busy bar, and panicked patrons rushed towards the only door.
break out(战争、打斗等不愉快事件)突然发生, 爆发
例句：Something unexpected always breaks out in this area.
在这一地区总有意想不到的事情发生。
The Second World War broke out in September 1939.
第二次世界大战爆发于1939年9月。
4.It's a rapidly growing number of pensioners in Japan, putting pressure on the welfare system.
put pressure on强迫，促使
例句：We put pressure on the government to change this law.
我们给政府施加压力，要求修改这项法律。
