Các câu ví dụ cho từ researched

1. The horse racecourse project in Hanoi was first researched in 1999, with the proposed location to be in the southern districts of Hoang Mai and Thanh Tri.

2. Nguyen said doctors at the hospital researched medical information, consulting international experts and colleagues as they tried to diagnose the problem.

3. "The plight of such children has not been researched in any depth in Vietnam, but the impacts of long-term separation from their parents are "significant and widespread," according to a UNICEF report.