Vectorcardiographic
心电向量描记法的
🗣️ 情景例句
I cried because I miss them all.
我哭因为我想念他们。
You're not wearing enough. It's cold out there.
你穿这样不够保暖。
The path led to a tiny village perched on the steep sides of a mountain.
顺着小路，我们来到一个座落在陡峭山坡上的小村庄。