The author was invited to the Third International Sturgeon Conference in Milan, Italy during July 7 to 12, 1997.
作者于1997年7月7日至12日应邀参加了意大利米兰地区召开的第三届国际鲟鱼会议。
The author was invited to the Third International Sturgeon Conference in Milan, Italy during July 7 to 12, 1997.
作者于1997年7月7日至12日应邀参加了意大利米兰地区召开的第三届国际鲟鱼会议。
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