Ietf
[计] Internet工程任务组
🗣️ 情景例句
Nothing.
没有什么。
Did you make bean milk yourself?
你自己亲自做豆奶？
He knew I collected match boxes and asked me whether my collection was growing.
他知道我收集火柴盒，于是问我收藏的米柴盒是否在增加。