A closer inspection of the tool mark shows a series of parallel teeth marks, probably from the use of a plumber's wrench or tongue-and-groove pliers.

放大后的检验，可见一系列平行的齿纹，有可能来自管钳，会其他靠钳齿来抓牢工件并旋转的钳子。

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I love to see in a fruit the mark of thy little teeth.

我喜欢看到水果上留下你可爱的牙齿印。

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Specifically, paleontologist Mark Purnell of the University of Leicester in England and his colleagues found four sets of striations oriented in different directions on the teeth of Edmontosaurus.

英格兰莱切斯特大学的古生物学家Mark Purnell和同事们在埃德蒙顿龙的牙齿上发现了四组不同方向的纹路。

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Mark Mazer, whose teeth-whitening firm is doing well, said he thought Mr Romney would be best for small businesses.

ECONOMIST: The Republicans