Ecowas
abbr. 西非国家经济共同体（Economic Community of West African States）
🗣️ 情景例句
Thank you again.
再次感谢。
All things must come to an end.
天下无不散的筵席。
In the evenings he studied hard for his exams, and most mornings he took tourists around Oxford.
他晚间努力学习，以应付考试，而大多数早上，他则带领游客在牛津大学参观。