Gmail has been on a steep, steady growth line while YouTube's fortunes have reversed a number of times.
Gmail访问量一直在迅速、稳定的上升，而YouTube的访问量却有好几次的负增长。
2
If the call by the line-judge or overrule by the Umpire is deemed incorrect, the players challenge is successful, and the decision by the line-judge or Umpire is reversed.
如果司线员或裁判员的裁决确认有误，则运动员挑战“鹰眼”成功，裁判员应纠正错误裁决。
3
Newton iterative calculation was adopted for the solution of non-line equation, which reversed calculation value of strip deformation resistance for process control of cold rolling as variable.