Day 890 
--- Proverbs ---
※ 原句 ※
The blind man’s wife needs no painting.
瞎子打灯笼，白费一支蜡。
When in doubt, play trumps.
不知道出什么牌好的时候，最好先出王牌（指打惠斯脱牌或桥牌）。
--- Oxford dictionary ---audio adj. [only before noun]
connected with sound that is recorded
声音的；录音的
audio and video cassettes
盒式录音带和录像带
audio n.
audio- combining form (in nouns, adjectives and adverbs)
connected with hearing or sound
音的；声的；听的
audiovisual
视听的
audiobook n.
a reading of a book, especially a novel, recorded on a CD, etc.
有声书；有声读物
audio guide n.
a small device, usually with headphones, that visitors to a museum, gallery, city, etc. Can hold in their hand and use to listen to recorded information while they are walking around
导览机；语音导览机
The museum provides free audio guides.
博物馆提供免费的导览机。
audiology n.
the science and medicine that deals with the sense of hearing
听力（医）学
audiologist n.
audiometry n.
(specialist) the measurement of how good a person’s sense of hearing is
测听（法）；听力测量
audio tape n.
magnetic tape on which sound can be recorded
录音带
audiovisual adj. (abbr. AV)
using both sound and pictures
视听的
audiovisual aids for the classroom
课堂视听教具
