mass noun
1
- a yellowish-beige colour浅黄色, 米色：
as modifier a buff envelope.浅黄色的信封。
2
- a stout dull yellow leather with a velvety surface暗黄皮革。
3
- count noun a stick, wheel, or pad used for polishing or smoothing擦拭轮（或棒, 垫）, 抛光轮。
with obj.
1- polish (something)擦亮：
he buffed the glass until it gleamed.
他把玻璃一直擦到闪闪发亮。
1.1
- give (leather) a velvety finish by removing the surface of the grain给（皮革）上光。
- N. Amer. informal (of a person or their body) in good physical shape with well-developed muscles〈北美, 非正式〉（人）身材好的, 体形好的：
the driver was a buff blond named March.
司机金发碧眼, 身材绝佳, 名叫马奇。
短语
in the buff
- informal naked〈非正式〉赤裸的。
词源
mid 16th cent.: probably from French buffle, from Italian bufalo, from late Latin bufalus （see BUFFALO）. The original sense in English was 'buffalo'， later 'oxhide' or 'colour of oxhide'.
with modifier
- informal a person who is enthusiastically interested in and very knowledgeable about a particular subject〈非正式〉爱好者, …迷：
a computer buff.
电脑迷。
词源
early 20th cent.: from BUFF1， originally applied to enthusiastic fire-watchers， because of the buff uniforms formerly worn by New York volunteer firemen.