Unicast
[计] 单一传播
🗣️ 情景例句
I hear Boswell
我听说Boswell
I'm practising tai chi chuan in the park.
我在公园打太极拳。
No, she's much younger than I am. She only started here this term.
对，她年纪比我小得多。她是这个学期才进校学习的。