Last year I (1)a conference on global warming in Mexico City. It was (2)byUN agency. The conference (3 )four days and was (4)by a series of optionaltwo-day workshops in various cities around Mexico. I stayed for(5)of theworkshops.句意: 去年我在墨西哥城参加了一个关于全球变暖的会议。它是由联合国机构主办的。这次会议持续了四天,接着是一系列在墨西哥各城市举办的可选择的为时两天的专题讨论会。我留下来参加了其中一个讨论会。
相关热点: 讨论会
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