1.take office 上任

Since he took office in 2002, violence has fallen sharply. As confidence returns, the economy is growing at 8% a year.

2002年他上臺以后，暴力事件就明顯變少了，隨著國民信心的回歸，經(jīng)濟也以每年8%的速度在增長KJM%p1IYIg。

2.guard against 防范

The Great Wall, you know, was constructed in ancient times to guard against invasion by nomadic tribes from the north.

你知道的，長城是古代為了防范北方的游牧民族入侵修建的zvP_nEHLMd6zhp。

3.be watered down 打折扣；沖淡

Greenpeace said the draft law has been steadily watered down in the protection it would offer.

綠色和平組織表示，草案的保護范圍被縮小了w-AY,1oK^OKts9JY。

4.sea change 巨變

There has been a sea change in Chinese leadership on climate change during the past few years.

過去幾年里，中國的領(lǐng)導(dǎo)階層對待氣候變化的態(tài)度已經(jīng)發(fā)生了翻天覆地的變化-tAi(,#Ab([sdzZ。