奥巴马是在穿梭于截然不同的世界之间成长的，他学会如何在黑与白、异乡与美国、富与贫之间穿梭自如。
Barack Obama grew up learning how to slip in and out of different worlds - black and white, foreign and American, rich and poor.
贫燃料与富燃料爆炸气体中，由管道底部向上，其电导性是逐渐增大的。
But in the fuel lean and fuel rich explosive gas, the electrical conductivity increases gradually from bottom to top.
同时涌现出的“富二代”与“贫二代”在中国心理测试媒体间引发了热议。
The simultaneous emergence of the " rich second generation " and " poor second generation " has triggered a heated debate in the Chinese media.
与典型斑岩型矿床蚀变分带对比，莲花山斑岩型矿床不同原岩类型蚀变特征变化较大，矿化则表现出富钨、金贫铜及钨金共同产出的特征。
The alteration is different from typical porphyry-type copper deposits and the mineralization is characterized by rich tungsten and gold and poor copper.
与典型斑岩型矿床蚀变分带对比，莲花山斑岩型矿床不同原岩类型蚀变特征变化较大，矿化则表现出富钨、金贫铜及钨金共同产出的特征。
The alteration is different from typical porphyry-type copper deposits and the mineralization is characterized by rich tungsten and gold and poor copper.
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