attendee|attendees

每位参会者都收到了一份会议资料包。

Every ___attendee received a conference materials package.

所有参会者都收到了活动手册和名牌。

All ___attendees received an event handbook and a name tag.

与会者强烈反对这项新政策。

The ___attendees at the meeting strongly opposed the new policy.