不能去掉,去掉没有语法错误,但是意思不太一样不去掉by ,by refering to …是作方式状语, 即通过参考各种不同的信息的方式,refer to 的意思是“参考”,逻辑主语当然是人,不是essay ,所以去掉by 后,意思不变的话,就不...怎翻译She was acknowledge by her tutor with anexcellent？她的一篇文章被她的导师认可，还是她因为一篇文章而被导师认可？怎翻译She was acknowledge by her tutor with anexcellent？她的一篇文章被她的导师认可，还是她因为一篇文章而被导师认可？是她因为一篇文章被导师认可如果是;她的一篇文章被她的导师认可应该说; Her excellent essay was acknowledged by her tutor