Drca
abbr. dominant right coronary artery 优势性右冠状动脉，显性右冠动脉
🗣️ 情景例句
We haven't heard from him for weeks but we're still hoping for a letter.
我们已经有几个星期没有他的消息，但仍然盼望着他的来信。
I appreciate your helping me.
感谢你的帮助。
Yes.
明白了。