Ietf
[计] Internet工程任务组
🗣️ 情景例句
at the Museum of Natural History.
在自然历史博物馆。
You have a radio,don't you?
你有一台收音机，对吗？
It was spring,but the weather was awful.It rained all the time.
是春天，但天气太糟了。一直在下雨。