The skies above Gaza are buzzing with surveillance drones.

加沙上空以色列的军用雄蜂无人侦察机的尖叫声不绝于耳。

youdao

WHO has assisted the Federal Ministry of Health with surveillance activities and supplies of anti-sera.

世界卫生组织已协助联邦卫生部开展监测活动和抗血清供应。

youdao

WHO is present in the field in all the affected countries, assisting with surveillance and control measures.

世卫组织在所有受影响国家的现场开展工作，协助监测和控制措施。

youdao

To counter that threat, the U.S.military will deploy Aegis ships equipped with missile interceptors along with radar surveillance sensors to counter the Iranian threat.

VOA: standard.2009.09.17

It said his cell was fitted with surveillance cameras designed to prevent incidents such as suicide.

BBC: Australia orders review into Israel Prisoner X case

Their six-month-long mission has been to train and advise Filipino troops, and help with surveillance, equipment, engineering and logistics.

ECONOMIST: The terrorists who got away

With surveillance and public health awareness, Seva (which means "service" in Hindi) has, it says, cured blindness in 2 million people.

FORBES: High Network Individual