It's an ideal proving ground for the new car.

这里是个理想的新车试验场。

New York is a proving ground today for the Democratic presidential candidates.

今天的纽约是民主党总统候选人的试验场。

The club is the proving ground for young boxers.

这个俱乐部是年轻拳击手的摇篮。

LEO is merely his proving ground.

近地轨道飞行只是他的试验田。

That this would make an excellent proving ground.

这里是个理想的新车试验场。