on-the-spot investigation

• 实地考察,现场勘察

on-the-spot investigation的用法和样例：

例句

1. Mimi, Micky and their classmates are going on a social studies field trip.
   眯眯，米奇和他们的同班同学正继续社会学科实地考察。
2. Methods The analysis based on the historical documents and fieldwork, fully utilizing the achievements in modern scientific research.
   方法基于历史文献与野外实地考察进行分析。