只要一滴油
Refraction | Define Refraction at Dictionary.com有一老漢是一個典型的莊稼人。他一生中有一個不大但也絕對不小的煩惱,就是他家的木門在開和關的時候都會發出響聲。那響聲又尖銳又乾燥,常令他心煩意亂,全身上下都不舒服。響聲是什麼時候有的,已經無從考證,娶媳婦以前只要忍受自己一個人開關門的尖叫聲就可以了,媳婦進門以後就開始忍受別人製造的聲音。尤為惱火的是,Astronomy. Also called astronomical refraction. the amount, in angular measure, by which the altitude of a celestial body is increased by the refraction of its light in the earth's atmosphere, being zero at the zenith and a maximum at the horizon. the obs...
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