若死因不是存在人体之内或之上，而是由环境造成的，直白一点 就是外因导致的死亡，一般用介词 from 。die down 枯萎，凋谢，假死，顶死，回枯: 逐渐平息，渐渐停止，逐渐消失，变弱:1.The dahlias died down when we had the first cold spell.
A Hong Kong tourist was hit and killed by a train in Otaru， Hokkaido， Japan， on January 23. According to Japanese media reports， a Chinese female tourist in her 60s was hit by a train while taking pictures of the sea view at an unmanned station. She was rushed to the hospital for treatment but was later confirmed dead. Xinhua News Agency later reported that the deceased was from Hong Kong. The Chinese Consulate - General in Sapporo said that it had immediately contacted the Japanese police to understand the accident situation. The consulate - general will continue to pay attention， maintain contact with relevant parties， and provide necessary consular assistance to the family of the deceased.
