1 [U] the fact of being in a particular place 出席；在场: He apologized to her in the presence of the whole family. 他当着全家人的面向她道歉。an experiment to test for the presence of oxygen 一项测试是否含氧的实验 [OPP] absence 反义词为absence

2 [sing] a number of soldiers or police officers who are in a place for a special reason （为执行某种职务而在场的）士兵或警察: There was a huge police presence at the demonstration. 示威进行期间有大批警察在场戒备。