Vectorcardiographic
心电向量描记法的
🗣️ 情景例句
Anything else?
还有别的事吗？
To get a driver's license
取得驾驶执照
Thanks. Oh, this is too small. Do you have a big piece, please?
谢谢。噢，这张太小了。请问你有一张大的吗？