Unstreaming
按学生年龄(而不是学习能力)分组
🗣️ 情景例句
What's your occupation?
你的职业是什么？
Messengers should neither be headed nor hanged.
两国相争，不斩来使。
Meanwhile, a microphone, which was lowered into the mine two hours ago, has enabled the men to keep in touch with their closest relatives.
与此同时，两个小时以前放下井去的一只麦克风使井下的人可以与其亲属保持联系。