It wasn't until I went to Taiwan this spring that I found out that most of the songbooks on Taiwan use number notation, which is hard for us foreigners to understand and makes it impossible for us to sing along with you.
今春，我去了一趟台灣，才瞭解原來台灣的歌本多半使用「簡譜」。可是，對我們外國人而言，卻很難理解。