CCTV9英语新闻11月：中国在防空识别区进行定期巡逻

China's air force says it will conduct regular air patrols covering its newly established East China Sea Air Defense¹ Identification Zone.

Combat aircraft will carry out the patrols to strengthen monitoring of the zone, according to an air defense spokesman. China says the patrols are a "defensive² measure" and fall in line with common international practices.

But the spokesman also says the Chinese air force is maintaining a status of "high alert", and will take appropriate measures to deal with any threat to China's airspace.

The announcement follows recent incidents of US, Japanese and South Korean planes entering the zone without informing China of flight plans,  one of the zone's key requirements. The Chinese patrols of the zone began on Thursday.

1 defense   

n.防御，保卫；[pl.]防务工事；辩护，答辩

参考例句：

• The accused has the right to defense.被告人有权获得辩护。
• The war has impacted the area with military and defense workers.战争使那个地区挤满了军队和防御工程人员。

2 defensive   

adj.防御的；防卫的；防守的

参考例句：

• Their questions about the money put her on the defensive.他们问到钱的问题，使她警觉起来。
• The Government hastily organized defensive measures against the raids.政府急忙布置了防卫措施抵御空袭。