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巨人捡起一块石头，扔得那么高，肉眼几乎看不见了。
The giant picked up a stone and threw it so high that the eye could scarcely follow it.
youdao
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那些星用肉眼几乎看不见。
Those stars are hardly visible to the naked eye.
youdao
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那些星用肉眼几乎看不见。
Those stars are hardly visible to the naked eye.
youdao