While the police were coming.

当警察就要来的时候。

youdao

My family and dogs sat in a hot car for over an hour while the police harassed me.

当警察过来骚扰我时，我的家庭还有狗狗们在酷热的车里呆了一个小时。

youdao

Police discovered a large stash of drugs while searching the house.

警方搜查这栋房子时发现里面藏有一大批毒品。

《牛津词典》

While the top police official gained some unexpected supporters, there was criticism as well from various sectors of society, including separatists.

VOA: standard.2009.04.08

Local police officials say the two soldiers were swept away Wednesday while trying to save supply boxes that fell into the water after being air-dropped.

VOA: standard.2009.11.07

Another man,who said he was at the cemetery, told an Iranian opposition website that police were chasing young people who were chanting "death to the dictator", while others were "throwing flowers at the police,asking them to support them."

VOA: standard.2009.07.30

Wei has been robbed by thugs while the police stood by and did nothing.

FORBES: Issues & Ideas

Mrs Miller said there was no need for a wider inquiry while the police investigation was going on.

BBC: Jimmy Savile scandal: Labour seeks independent inquiry

In Derry, houses were evacuated in Drumleck Drive while the police and Army dealt with two suspicious objects.

BBC: PSNI landrover