fastness 釋義 同義字/反義字 變化形 KK: [] DJ: [] n. (名詞 noun) 牢固;(顏色)不褪色[U] We guarantee the fastness of these dyes. 我們擔保這些顏料不褪色。 據點;堡壘[C] The rebels have withdrawn to their mountain fastness for the winter. 叛軍撤至他們的山寨過冬。