1.福祉 well-being

例句：

Despite the evidence of a decline in national wellbeing, governments continue to put economic interests first.
尽管大量的事实表明国民的心灵健康状况在下降，但政府仍然把经济利益放在首位。

2.精华 quintessence

例句：

Her book captures the quintessence of Renaissance humanism.
她的书抓住了文艺复兴时期人文主义的精髓.

3.阴霾 specter

例句：

The specter of unemployment hunted the country.
失业的幽灵在这个国家作祟。

4.打折扣 wear thin / water down

例句：

The joke began to wear thin when you heard it too many times.
这个笑话因为听得遍数太多不那么吸引人了。

You'd better water down your demand.
你最好降低一下要求。

5.不谋而合 coincide with

例句：

His taste and habit coincide with those of his wife.
他的品味和习惯与他的妻子恰巧一样。