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重点讲解：
1.move forward向前发展
The next step is to move forward with an intervention trial to see if there is therapeutic value in people.
下一步就是通过干预性的试验继续向前发展，看看是否在人类中具有治疗价值。
2.a long way to go很长的路要走
There is also a long way to go before the elections can be declared a success for democracy.
此外，在此次选举能够被称为是民主主义的一次胜利之前，还有很长的路要走。
