Contact an engineer and ask him what a bridge is.
联系一位工程师，问问他什么是桥。
The engineer drew a diagram of the bridge.
工程师绘制了一幅这座桥的示意图。
The engineer said, "Slide-rule, go!" The dog built a suspension bridge.
建筑师说道：“滑尺，上！”他的狗建造了一座悬桥。
Can you imagine an engineer building a bridge with no plan?
你能想像一位工程师在建造大桥时没有使用设计图纸吗？
Can you imagine an engineer building a bridge with no plan?
你能想像一位工程师在建造大桥时没有使用设计图纸吗？
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