The club is the proving ground for young boxers.

这个俱乐部是年轻拳击手的摇篮。

《牛津词典》

The administration has no vested interest in proving public schools good or bad.

该行政部门在证明公立学校的好坏方面没有什么既得利益。

《柯林斯英汉双解大词典》

"There's a mountain of evidence proving the importance of sex influences at all levels of brain function," he told The Seattle Times.

他在接受《西雅图时报》采访时表示，“大量证据证明，性对大脑各方面功能有影响。”

youdao

The two Americans were working at the Aberdeen Proving Ground in Maryland.

VOA: special.2010.02.09

Physiologists ran tests, showing, proving scientifically the limit of human ability was running the mile in 4 minutes.

生理学家进行实验，在科学上展示证明人类能力极限,是四分钟跑一英里。

哈佛公开课 - 幸福课课程节选

These are all my proofs to support all the things that I've already told you, but I'm not going to bother proving it, it would take too long.

以上是我给大家所讲的论据,虽然我不介意给大家论证一下,但是那会占用太多时间

耶鲁公开课 - 古希腊历史简介课程节选

International experience is the proving ground for many a rising executive.

FORBES: Your Basic Guide To Business Travel Abroad

On the proving grounds' high-speed circuit, as one might expect, the new Range Rover felt distinctly less ponderous and quite a bit more spirited and direct in handling.

WSJ: 2013 Range Rover Review: If You Must Buy a Luxury SUV... | Rumble Seat

WiMAX is definitely the proving grounds for 4G.

FORBES: CTO Session: Nortel's Roese Speaks Out