strengthened 是 strengthen 的過去式、過去分詞strengthenKK [ˋstrɛŋθən] /ˈstɹɛŋθən/發音strength 力量+-en 使…(動詞)→使有力量展開收合strength單字力量-en字尾使…(動詞)字面:使有力量動詞1加強、強化、增強The new law strengthens protection for part-time workers.新法加強了對兼職員工的保障。2變強、增強The wind strengthened overnight and brought heavy rain.風勢在夜裡增強,帶來了大雨。3鞏固、加固、補強Engineers strengthened the bridge before the typhoon season.工程師在颱風季前補強了那座橋。4上漲、走強金融The local currency strengthened against the dollar last week.上週當地貨幣對美元走強。