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[计]= Test SubCHannel,测试子通道
🗣️ 情景例句
and writing the background for Family Album,U.S.A.--
为Family Album,U.S.A.撰写背景说明的年轻人
In secondary school, children study history and geography.
中学的小孩会读历史和地理。
Well, said the doctor.
“嗯，”医生说。