expeditionary observations的用法和樣例：
例句
- There have been numerous publications that make observations or heap praises on Singapore penned by some of the visitors.
中國訪客回國后，所出版的對這座花園城市的考察著作或讚美之辭，更是多不勝數。 - I was requested by the government to go to the scene fo action to take scientific observations.
我應政府的邀請，前往現場進行科學考察。
