Outside Jackson's Bel Air home, police arrived on motorcycles. The road in front of the home was closed in an attempt to hold traffic back, but several people were gathered outside the home.

警察已驾摩托车到达杰克逊在贝尔·艾尔的住处，关闭门前的道路，以阻止人流车辆，但是仍有一些人聚集在门外。

youdao

Smoking aggravated the damage of traffic air pollution on the health of traffic police who were smokers and worked outdoor.

吸烟和交通废气污染联合作用加重了对吸烟外勤警的健康损害。

youdao

Could the same issues pertain to other expert observers like MRI technicians, air traffic controllers, and police officers?

FORBES: The Invisible Gorilla Effect

Even people with mild colorblindness can be barred from being pilots, air-traffic controllers, police officers, lab technicians and electricians usually for safety reasons.

WSJ: New Outlook for Colorblindness

Mr Westendorp faces a huge agenda: the creation of a common air-traffic control system, free media and reformed police forces, to name just three objectives (all of which the Serbs resist).

ECONOMIST: The disunited state of Bosnia