这并不是俄国人第一次发现黑龙江(一种说法是黑龙江是世界第六长的河，超过湄公河和刚果河的长度，流域面积超过长江)。
It was not the first time that Russians had stumbled on the Amur, by some measures the world's sixth-longest river, longer than the Mekong or the Congo and draining a basin bigger than the Yangzi's.
刚果盆地的物种尤其丰富；伊图里森林是霍加皮（一种非洲鹿）、黑猩猩、美洲豹和大象的家园。
The Congo Basin is especiallyspecies-rich; the Ituri forest is home to okapis, chimpanzees, leopards, and elephants.
倭黑猩猩顾名思义是猩猩的一种，它们住在刚果并且是和人类最为相似。
The bonobo is a type of ape. It lives only in the Congo and it's one of our closest living relatives.
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