Periodometer
调和分析仪
🗣️ 情景例句
But Dad was so exhausted when he came home from work.
但爸爸工作回来时已经累得不得了了。
What did the doctor say?
医生怎么说？
Would you care to answer my question on the warranty?
你可以回答我有关保证的问题吗？