He feels more confident on home turf.

他在主场感到更有信心。

《牛津词典》

Other systems also seem confident on the subject of jamming.

其他系统似乎对抗干扰也很有信心。

youdao

Well, here it is: you don't have to feel confident on the inside to look confident on the outside.

这里就有一个：你不必内心充满自信就能看起来信心满满。

youdao

Gibbs said the White House is confident that at minimum a vote in the House can happen before the president leaves on his trip.

VOA: standard.2010.03.10

So, you can understand they really felt quite confident at this time that we could explain everything that was going on and in fact, a really telling quote from the time was said by a professor at the University of Chicago, and what he said is, "Our future discoveries must be looked for in the sixth decimal place."

所以你可以理解,为什么当时的人那么,自信的说我们可以解释,这世界上发生的一起事情,事实上，当时有个著名的名言,是芝加哥大学的一个教授说的,他说“我们今后的科学发现,就在于弄清楚小数点第六位后的数，“

麻省理工公开课 - 化学原理课程节选

"I am confident and hopeful that he will now - getting this clear message from both the House and Senate on the appropriations bill - begin to rethink the appropriateness of an arbitrary timeline for the closing of Guantanamo,"

VOA: standard.2009.05.20

There was a meeting on Monday, but are you satisfied and confident on the process?

WHITEHOUSE: Press Briefing

And this is really a really hot button issue for Russia, which is feeling a lot more confident on the world stage in general.

NPR: Missile Defense, the U.S. and Europe

I'm confident on technical agreement - we will not have two sets of rules - and I hope and believe we will have progress in the next few days.

BBC: F1 breakaway plans still in place