The PM presided over a meeting of his inner Cabinet. [V + over/at]

首相主持了一次核心内阁会议。

He presided at the trial of the Maguire Seven. [V over/at n]

他主审马圭尔等七人案。

The presiding officer ruled that the motion was out of order. [VERB-ing]

主管官员裁定这项动议不符合议事规程。