一些红发的人的确不宜穿暗红色衣物，但他们完全不能穿红是错误的。如果你是一头红发，你得小心地挑选与你自然发色相协调的颜色。

If you have red hair, you need to be careful to choose reds that work with your natural coloring.

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这些货物完全不宜销售。

These goods are entirely unfit for sale.

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河上完全没有桥梁，而且河水湍急，不宜小船摆渡。

There is no bridge and the river runs the quickly for boats.

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