回複：指頭是比胳膊不準，所以一般都得抽胳膊確診

來源: 於 2012-08-29 06:59:27 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

I understand that, usually finger tip is 20% higher than arm location. But, mine is way too beyond the sensible range.