bean可数吗

　　It doesn't cost a bean.

　　这一分钱也不用花。

　　Bean sprouts are also sold in cans.

　　也有罐装豆芽出售。

　　Bean sprouts are healthy.

　　豆芽有利于健康。

　　If low lands must be used for the bean crop, they should be ridged.

　　如果低地必须用于种植豆类作物，就必须把地整成交替的垄和沟。

　　Have a look at this, old bean!

　　看看这个，老兄！