短語詞組用作動詞 (v.)～+名詞weaken sb 's heart 使某人的心臟衰弱weaken one 's tea 把茶沖淡～+副詞weaken basically 基本削弱weaken constitutionally 〔materially〕 體質(zhì)變?nèi)?/li>weaken painfully 痛苦地削弱weaken permanently 永久地削弱weaken tragically 悲慘地削弱～+介詞weaken by 通過…使變淡weaken tea by adding water 通過加水使茶變淡短語 返回 weakens