Pneumotachogram
呼吸速度描记图
🗣️ 情景例句
My mother knows all there is to know
我母亲完全懂得
They've already turned on the electricity.The house is ready.
他们已经开了电.房子是准备好了的。
There is only one difference between an old man and a young one:
老年人和年轻人之间仅仅有一个不同：