The monkey was pleased and jumped onto the crocodile 's back.
猴子很高兴，就跳到鳄鱼背上。
A Bell Labs team began developing a research project called "s" back in the mid - '70s.
贝尔实验室的一个开发团队自20世纪70年代中期就开始进行一项名为“S”的研究项目。
A Bell Labs team began developing a research project called "s" back in the mid - '70s.
贝尔实验室的一个开发团队自20世纪70年代中期就开始进行一项名为“S”的研究项目。
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