当时，四个身穿白色泰维克工作服的年轻人将带有芳香气味的骨粉团与表层土混在了一起，盖上防水布，然后就度周末去了。
Four young men, each wearing white Tyvek coveralls, topped some of the redolent mixture with topsoil, put tarps over the rest and left for the holiday weekend.
开始摄像后，富布赖特和一位很有个性的穿着工作服的老人握手，请他投自己一票。
With cameras rolling, Fulbright shook hands with an old character in overalls and asked him for his vote.
当利瓦伊·施特劳斯和裁缝雅各布·戴维斯把在工作服上打柳钉的程序申请专利时，他们便创造了世界上第一条牛仔裤。
When Levi Strauss and tailor Jacob Davis patented the process to put rivets in men's denim work pants, they created the world's first blue jean.
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