Dever
n. （葡）义务
🗣️ 情景例句
Come and see me later and I'll give you some advice.
稍后来见我，我给你一些建议。
You should wear a raincoat, It's rainy today.
你应该穿一件雨衣，因为今天下雨。
Most countries use these satellites to send and receive messages.
大多数国家利用这些卫星发送和接收消息。