Periodogram
[计] 周期图
🗣️ 情景例句
I'm pleased to meet you, Mr. Peter.
皮特先生，很荣幸认识你。
While you trust to the dog,the wolf slips into the sheepfold.
当你认为狗可信，狼已偷偷把羊圈进。
Don't worry! We won't leave before nine. We'll wait for you outside the school gate!
别担心！9：00前我们不会出发。我们将在学校的大门外等你！