Now, it's the engineer's turn. He asks the programmer "What goes up a hill with three legs, and comes down on four?"
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that cup with three legs 有三只脚的杯子
three-phase transformer with three legs 三相三柱变压器
Two-handled Bu with Three Legs 双系三足瓿
Puller with three legs 三抓强力捋子
transformer with three legs 三相心式变压器
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