tofu可數嗎

　　I like roast duck and mapo tofu.

　　我想要烤鴨和麻婆豆腐。

　　You don't need to eat a whole brick of tofu.

　　你都不需要吃掉一整塊豆腐。

　　"Tilapia," he snarls, "is the tofu of fish."

　　“羅非魚，”他嚷嚷著說，“就跟魚里面的豆腐一樣。”