In Taiwan, you not only have to go to supplementary school if you didn't do well in English or math, you also have to bone up if you can't sing well. And the supplementary schools which offer this class are doing booming business!
在台灣，不只英文、數學念不好要補習，歌唱不好也可以補習，而且開課的補習班還生意興隆得很！