Periodometer
调和分析仪
🗣️ 情景例句
when she was running for the school board.
在妈妈竞选联合校董会席次时。
Do you fell better now?
你现在觉得好点了吗？
Did you give our English teacher a card for Teachers' Day?
你给了我们的英语老师教师节贺卡了吗？