Phasograph
测量相位畸变的电桥
🗣️ 情景例句
I do...yes, but I have Michelle...
不错……是的 ，但我还有Michelle……
How many years have you been playing pingpong?
你打乒乓球多少年了？
Can you cover for me on Friday. Tell me how to get there?
星期五能不能请你替我个班。 你能告诉我到那里怎么走吗？