橇，读音qiāo，汉字，古代在泥路上行走所乘之具。
费曼在做曼哈顿计划时橇保险箱这件事，其实是很美国的。
There is something very American about Feynman breaking into safes during the Manhattan Project.
随着一阵喊声，伴随着锤子和铁橇的咣铛声，他们将一节铁轨放入正确的地方。
With a roar of exertion, they heave a piece of rail into place with a loud clanging of hammers and crowbars.
这些小男孩乘长橇高兴地下山了。
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