英语单词：attenuate

中文含义：减弱，降低，使稀薄

英语词性：动词

美式发音：[əˈtɛnjuˌeɪt]

同义词：weaken, reduce, decrease, diminish

易混淆单词：extenuate（减轻罪过）

双语例句：

1. The radio signal attenuated as it passed through the thick concrete walls of the building. （无线电信号在穿过建筑物的厚重混凝土墙时被削弱了。）

2. The drug is used to attenuate the symptoms of the disease. （这种药物用于减轻疾病的症状。）

3. The government has taken steps to attenuate the impact of the economic recession. （政府采取措施减轻经济衰退的影响。）