she is such a computer fan that you can"t tear her away from the _英语解答

she is such a computer fan that you can"t tear her away from the computer (once)she starts
为什么since不行?这里once

人气：423 ℃　时间：2019-08-20 10:53:05

解答

once 这边是一旦的意思
用since时,主句应该用现在完成时