an iron constitution.

• 强健的体魄

an iron constitution.的用法和样例：

例句

1. The sun touches gold in my heart, teaches me to extend, with iron will and physique, my strong arms, continuing my life.
   太阳在我心中点金，教我以钢的意志，铁的体魄，舒展壮臂，将生命绵延。