Precordial leads
[医] 胸[前]导程, 心前导程
🧩 词语组成解析
a. 心前区的\\n[医] 心口的, 心窝的, 心前区的
n. 领导者；引线；管道（lead的复数）
🗣️ 情景例句
It was my please.
荣幸之至。
It's very warm.
天气很暖和啊。
I know. I can help him with most of his subjects.
我知道。我可以帮助他学习绝大多数科目。