Though he is somewhat red-blind, he is a red-blooded young man.

虽然他对红色有点色盲，但他却是一个充满活力的年轻人。

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Sharks may be able to smell blood from miles away, but they probably don't know how red it is: New research suggests sharks are color-blind.

鲨鱼可以在数英里外就嗅到鲜血的腥味，但是他们很可能并不知道血是红的：最新研究表明，鲨鱼其实是色盲。

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Unit board detection: fast testing the problems of the blind, darken, all red on the unit board.

单元板检测：快速检测出单元板是否存在瞎点、暗亮，全红等问题。

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And the Tongan blind-side then put his side in deep trouble as he was red-carded following a forearm smash to the face of a Samoan with nine minutes to go.

BBC: Samoa 15-19 Tonga