第一个表达是正确的,译为：5年前,她还只是一个小女孩.该句也可换为she was only a five-year-old girl.第二个为什么错了，第一个这种句型你可以再帮我造几个句吗？He was here only a few minutes ago.仅仅几分钟前他还在这里。She was the only person able to do it. 她是唯一能做那事的人。