n.南美食用淡水魚(yú)的一種

A large South American freshwater food fish(Arapaima gigas) that typically attains a length of3 meters(10 feet). 巨體舌魚(yú)屬一種大型南美淡水食用魚(yú)（巨骨舌魚(yú)）一般長(zhǎng)達(dá)3米（10英尺）

A diver shares a tank with an adult arapaima fish at an aquarium in Manaus, Brazil. 在巴西的馬瑙斯[巴西西北部城市]，一名潛水夫和一頭成年巨滑舌魚(yú)同處一池。

The Arapaima uses its bony tongue to crush prey against the roof of its mouth before swallowing. 在咽下去之前，巨骨舌魚(yú)使用其帶骨頭的舌頭將獵物與自己的上顎仿佛撞擊。

This behavior makes it plausible to imagine a fisherman being struck and knocked unconscious by a frantic arapaima. 這種行為很有可能就讓釣魚(yú)者被一只絕望掙扎的巨骨舌魚(yú)打昏。

The arapaima is the focus of several conservation projects in South America, including no-fishing reserves and fishing quotas. 因此這種巨滑舌魚(yú)的保護(hù)項(xiàng)目在南美逐漸成為焦點(diǎn)，包括休漁期和限定配額的捕撈。