Scientists say it may be a fe years___it is possible to test the new medicine on patients.

问题描述:

Scientists say it may be a fe years___it is possible to test the new medicine on patients.
求翻译、谢谢

横杠处应该有个before 吧.
科学家认为,在病人身上试验新药这一做法,也许还需要一些年才能成为可能.