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315 Activities E
exact: like: research
2000VIET
nghiên cứu
research
Vie
Eng
the research was thoroughly carried out
☊
nghiên cứu đã thực hiện chu đáo
☊
the research was thoroughly carried out ☊ 
nghiên cứu đã thực hiện chu đáo ☊ nghiên cứu research