竞争
参考答案：竞争是指个体或群体充分实现自身的潜能，力争按优胜标准使自己的成绩超过对手的过程。
Whenever she is sad, her parents can always _____ . [ ]
A. bring her up
B. cheer her up
C. give her up
D. come on
机场停机坪用作接送旅客的30座客车
