when the chips are down

• 紧急关头

when the chips are down的用法和样例：

例句

1. The situation was about to boil over.
   当时的形势几乎到了紧急关头。
2. A crisis brings out the best in her.
   在紧急关头看出了她的优秀品质。
3. The doctors ejected the newly approved drug into the patient when he was critically ill.
   当那个病人病情危急时，医生们给他注射了最近核准的药物。