Scientists at an international conference have been discussing global warming and its possible effects.科学家在一个国际会议上讨论全球气候变暖及其可能造成的影响。We met at an international conference.我们在一次国际会议上相遇。The great powers held an international conference.几个大国召开了国际会议。She interpreted at the international conference.她在那次国际会议上担任口译。