Ercp
abbr. 内镜下逆行胰胆管造影术（Endoscopic Retrograde Cholangiopancreatography）
🗣️ 情景例句
Speaking of being a mother,
谈到当母亲，
How are you?
你好吗？
is the slowest and has travelled round the earth through the surface rocks.
是最慢的，是围绕地球通过表面岩石传来的。