We must persist in searching the quality of the game.

我们必须继续寻求比赛的质量。

youdao

We must persist in studying even a little everyday, and we do not waste this day.

哪怕一天一点点进步，我们也不会白活这一天。

youdao

This is an uphill battle — but we must persist in proclaiming the Truce and do our utmost to win adherence to it.

这是一场艰苦的战斗——但我们必须鼎力宣布休战，竭尽所能，争取遵守休战。

youdao

"If we are to defeat this vicious insurgency and by doing so make Britain and the world a safer place, then we must persist with our operations in Afghanistan.

VOA: standard.2009.07.13