activity trace造句

• To log only activity tracing events
  仅记录活动跟踪事件
• It is the daedal hand of nature that not only leaves endless imagination to people , but also records precious information related to biological evolution and human activities trace
  大自然鬼斧神工的杰作，不仅留下了使人们产生无尽畅想的自然奇观，也记录了让我们捕获生物演变和人类活动踪迹的珍贵信息。