sudden precordial pain

例句：

1. 1.He suddenly felt a sharp pain in his chest, and he knew he needed to see a doctor immediately.
   他突然感到胸口一阵剧痛，他知道他需要立刻去看医生。
2. 2.She had been experiencing sudden precordial pain for the past few days, which worried her family.
   她过去几天一直有突发胸痛，这让她的家人很担心。
3. 3.The sudden precordial pain made him feel dizzy and nauseous, so he decided to seek medical attention immediately.
   突发胸痛让他感到头晕目眩，恶心，所以他决定立刻寻求医疗帮助。