1. Tetanus, also known as lockjaw, causes stiffness and spasms of the muscles.
破伤风，也被称为牙关紧闭症，会导致肌肉僵硬和痉挛。
2. He had to receive a tetanus shot after stepping on a rusty nail to prevent lockjaw.
他因为踩到了一根生锈的钉子，不得不接种破伤风疫苗以防止牙关紧闭症。