易混淆的单词： CRABS

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Horseshoe crabs are much the same .

马蹄蟹与之十分相似。

But not , perhaps , for much longer-for crabs are on the march .

然而，好日子可能不会长久了因为蟹的入侵。

They are the same kind of deep-water crabs with big red claws that you might find at the seafood counter .

它们和你在水产柜台可能看见的脚爪很大很红的深水蟹类是同一品种。

But here in antarctica , crabs haven 't lived in coastal waters for the past 40 million years .

但在南极洲，蟹类在过去的4千万年中都从没有在海岸水域生活过。

They want to know whether the crabs will invade and leave , or permanently colonize the shallow areas .

他们希望了解蟹类是否会在入侵后离开，或者是永久地在这片浅水区域殖民。