BBC在线收听下载:美国航天局宣布发现迄今最像地球的系外行星

短语讲解：

1. The United States of America is the one advanced nation on earth, in which we do not have sufficient common sense gun safety laws even in the face of repeated mass killings.

in the face of 面临，现对
例句：The balloon was lightly flying in the face of an east wind.
东风吹得气球轻轻摇晃。

2. US officials say Turkey has agreed to allow American military planes to use the Turkish air base at Incirlik in the campaign against Islamic state militants in Iraq and Syria.

agree to 同意
例句：We cannot agree to consign the goods.
我们不同意寄售此货。

3. But the government has warned over traditional leaders, some manage to step up its campaign despite the insecurity in the north of the country.

step up 加紧
例句：We must step up our vigilance.
我们一定要提高警惕。

4. Finally the American space agency NASA has announced the discovery of the first near earth size planet in the habitable zone of star that is similar to our Sun.

be similar to 与…相似; 类乎
例句：This behavior is similar to buckling of strut.
这种状态类似于压杆的屈曲。