This material protects the molluscs against their enemies.

这种材料保护着里面的软体动物不受侵害。

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And molluscs , of which at least 150 species are of commercial importance.

本港出产的鱼类、贝介类和软体动物，品种繁多，可供贩卖的最少有150种。

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And molluscs , of which at least 150 species are of commercial importance.

本港出产的鱼类、贝介类和软体动物，品种繁多，可供贩卖的最少有150种。

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