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https://online2.tingclass.net/lesson/shi0529/0008/8458/3271-vital.mp3

https://image.tingclass.net/statics/js/2012

vital 的意思是至关重要的。

U.S. President Donald Trump said he believes America must be fully equipped to defend its vital interests as he signed a directive to create a new US Space Force. 美国总统川普在签署一项成立美国太空部队的指令时表示，他认为美国必须有充分的手段来捍卫其重要利益。

For hundreds of years, women have played a vital role in African peace and security as they sacrificed in liberation struggles and offered unique skills in peacekeeping operations. 几百年来，妇女在非洲和平与安全事务中发挥了至关重要的作用，她们在解放斗争中做出牺牲，并为维和行动提供独特技能。

学个词