Vectorcardiographic
心电向量描记法的
🗣️ 情景例句
I recommend rose-petal salad.
我向你们推荐玫瑰花瓣沙拉。
This product is doing very well in foreign countries.
这种产品在国外很畅销。
A Festival for the Dead is held once a year in Japan.
日本每年过一次“亡灵节”。