Leucoplakia
白斑病
??? 情景例句
I bet I can go one hour in your class this morning and not feel a thing!
我打賭我今天上午到的健身班運動一小時之后絲毫不累。
Excuse me, would you give me a hand?
對不起，你能幫我個忙嗎？
But, in addition to that basically simple concept,
除了這一基本的簡單的概念外，