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More recreational, Skinner was fond of teaching animals to play Ping-Pong.
更好玩的是，斯金纳喜欢教动物们打乒乓球。
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$firstVoiceSent
- 来自原声例句
More recreational, Skinner was fond of teaching animals to play Ping-Pong.
更好玩的是，斯金纳喜欢教动物们打乒乓球。
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