Critically Endangered: 3, 325 (of these, 257 species are listed as "possibly extinct")?
严重濒危的物种：3325(其中有257个物种被列为“几乎已经灭绝”)？
Chinese scientists said they will continue to search for the rare white-flag dolphin although it is possibly extinct as a 38-day search failed to find any in the Yangtze River.
中国科学家称他们将继续搜索罕见珍贵的白鳍豚，尽管它们很可能已经灭绝，因为38天长江中的搜索没有任何发现。
From time to time people suggest that extinct animals like dinosaurs, can possibly be brought back to life through cloning.
不时地会有人提议，克隆技术将有可能使地球上已经消失的动物(如恐龙)复活。
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