A bit is a great piece of cold hard metal, as thick as a man's finger, which is pushed into a horse's mouth between his teeth and over his tongue, with the ends coming out at the corners.

马嚼口是一大块又冷又硬的金属，像人的手指那么厚，塞进马嘴，卡在上下两排牙齿之间、舌头之上，末端从嘴角伸出来。

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A bit is a great piece of cold hard metal, as thick as a man's finger, which is pushed into a horse's mouth between his teeth and over his tongue, with the ends coming out at the corners.

马嚼口是一大块又冷又硬的金属，像人的手指那么厚，塞进马嘴，卡在上下两排牙齿之间、舌头之上，末端从嘴角伸出来。

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