sign of life

• 生命迹象

sign of life的用法和样例：

例句

1. The camel was the sole sign of life in the desert.
   那匹骆驼是这沙漠中唯一的生命迹象。
2. Marine life was discovered at depths previously thought to be azoic.
   在先前被认为是没有任何生命迹象的海洋深处发现了海洋生物。