N a hole through which something, such as a rope, hook, or bar, is passed (供穿绳、挂钩、穿棒等用的)圆孔眼
In old English these were called eyethurls and since thurl is an old word for hole, this means eye holes.
在古英语里，它叫eyethurl, thurl是hole(洞)的古老的写法，整个词的意思是窥视孔。
The laser, with its beam of strong light, can drill a hole in a diamond, and yet can be so well controlled that it can be used in delicate eye operations.
激光有强烈的光束，可以在钻石上钻洞，而且可以被很好地控制，用于精密的眼部手术。
The laser, with its beam of strong light, can drill a hole in a diamond, and yet can be so well controlled that it can be used in delicate eye operations.
凭着本身强烈的光束，激光可在钻石上钻一个洞，而且可以被很好地控制，因此能用于精密的眼部手术。
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