in sport

• adv. 闹着玩(开玩笑地；非认真地)

in sport的用法和样例：

例句

1. She said it merely in sport.
   这话她只是说着玩罢了。
2. His work suffered because of his total absorption in sport.
   他热中於运动而影响了工作。
3. You have to be highly competitive to do well in sport nowadays.
   如今必须有高度的竞争意识才能在体育运动中取胜。