covertly

副词

1. 1

   暗中、秘密地

   The agency covertly monitored the group's financial transactions for months.

   该机构暗中监控这个组织的金融交易长达数月。

2. 2

   偷偷地、悄悄地

   She covertly checked her phone under the table during the meeting.

   开会时她在桌子底下偷偷看手机。