Mpfm
赖特微型峰流量计(mini-Wright peak flow meter)
🗣️ 情景例句
What was your GPA last semester?
你上个学期的平均成绩是多少？
Diligence is the mother of success.
勤奋是成功之母。
Are there any trees in the picture?
画里面有树吗？