He was once a member of the mob.

他曾是犯罪集团的一员。

youdao

Once a member in a group is a suspect, all members in the group are suspects.

一旦群组中的成员是可疑人员，群组中的所有成员都是可疑人员。

youdao

Once a member of the Standing Committee of the Consultative Committee for the Basic Law of MSAR.

曾任澳门基本法咨询委员会常务委员。

youdao

He replied, once we verified there was no danger to a member's property, we had no choice but to back off according to our rules.

他回答道，根据公司规定，一旦确认会员财产无损，我们只能袖手旁观。

耶鲁公开课 - 公正课程节选

The Welsh Conservative group of AMs, of which Mr Jones was once a member, won't be "darned".

BBC: The only Jones in the Wales Office

The Serbian Unity Party run by Arkan, who, as Mr Raznatovic, was once a member of parliament, has refused to comment.

ECONOMIST: Arkan, perhaps sighted, surely wanted

The Green Party's president has said he leans towards Mr Serra, but Ms Silva herself was once a member of Ms Rousseff's Workers' Party (PT).

ECONOMIST: Brazil's presidential election