APAD: 祝贺盈盈上任美坛版主. Now you are on the ball :))
卫宁
楼主 (文学城)
on the ball Attentive, knowledgeable, and quick to take action.I'm so glad that my assistant is always on the ball because I'm too scatterbrained to manage my schedule on my own.I can't believe Molly got that report done so quickly—she's really on the ball
alert to new ideas, methods, and trends. informal
1998 Romesh Gunesekera Sandglass It's big business now, you know. You have to be on the ball: go, go, go all the time. See also: ball, on