计算结果必须显示y小于10才符合要求。

The calculation must show y ___less than 10 to meet the requirement.

这位游泳选手在昨天的比赛中创造了她的个人最佳成绩。

The swimmer set her ___PR in yesterday's competition.

这次限时优惠24小时内就要结束了，赶快行动！

Hurry up, this ___limited-time offer expires in 24 hours!