Hematoporphyrin
血卟啉
🗣️ 情景例句
Sometimes.
有时候。
I've got an slight in my chest.
我的胸口有点痛。
It is all too easy to blame the railway authorities when something does go wrong.
因此，一旦铁路上真出了问题，人们便不加思索地责备铁路当局。