He seems to have the hump this morning.
他今天早上似乎心里不痛快。
There are two types of camel, dromedary camels like in the pictuer that only have one hump, and the bactrian which has two.
世界上有两种骆驼, 单峰骆驼(如图)只有一个驼峰, 双峰骆驼有两个驼峰。
Bactrian camels have two humps rather than the single hump of their Arabian relatives.
和近亲阿拉伯单峰驼相比,它们有两个驼峰。
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