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
Have you ever been there?
你去过那儿吗？
He's not in. May I take a message for him?
他不在，我能替他捎个口信吗？
Would you like me to demonstrate it for you?
要不要我来为你示范一下？