Cams
n. 凸輪（cam的復數）
??? 情景例句
But personally I believe a business letter should end with Very truly yours, not Sincerely.
還行，喬治。但是我個人相信一封商業信函應該以“敬上”結尾，而不是“謹啟”。
How much is the admisssion fee?
入場費要多少錢？
Since I'm here, I'd like to try a typical dish of this country.
既然來了，我想吃這個國家特有的食物。