They are fighting the Conservatives on their own ground.

他们以保守党人自己的逻辑在和他们斗争。

《牛津词典》

It's always difficult to go and face a lower division side on their own ground.

做客一些低级别球队的球场往往很难战胜他们。

youdao

Cesc Fabregas and Emmanuel Adebayor were on target as Arsenal became the first English club to beat AC Milan on their own ground.

因为阿森纳成为第一支在米兰主场取胜的英国球队，阿德巴约和法布雷加斯成为了瞩目焦点。

youdao

Others are geared to those withdrawing money from company plans to invest on their own, fertile ground for a financial adviser.

FORBES: Magazine Article

After midnight, and after coalition commanders repeatedly touted the Afghans' ability to tackle the crisis on their own, the ground team decided that it needed the firepower of the kind the Afghan military doesn't possess.

WSJ: Karzai Says U.S. Coalition Failed as Kabul Cleans Up

One of their own is on the ground, seriously wounded.

CNN: Inside San Pedro Sula, the 'murder capital' of the world