believe truly

基本解释

Do your customers believe – truly, honestly believe – that your product is worth their money?
你的顾客是否相信——真心诚意地相信——你的产品值得他们的金钱？
It is in fact one of the only institutions that I believe truly seeks to have the "cream" rise to the top, independent of reputation or stature.
事实上，它是我所信任的为数不多的研究机构之一，他们将研究精华层层上报，并具有独立的权威或司法程序。
Do your customers believe – truly, honestly believe – that your product is worth their money? Or are they buying from you under pressure from underhanded sales tactics?
你的顾客是否相信——真心诚意地相信——你的产品值得他们的金钱？或者他们从你处购买是出于秘密销售策略所带来的压力？

We are doing that because we truly believe this is in accordance with our law."
Well,maybe the explanation is, although we give lip service to the claim that we're mortal, at some more fundamental level,we don't truly believe it.
也许这个的解释就是，纵然我们口头上说我们会死，在某些最根本的层面上我们其实并不相信。
耶鲁公开课 - 死亡课程节选
But does he thoroughly and truly and fundamentally believe he's mortal?
但他确实彻底真正地,相信自己必死吗？
耶鲁公开课 - 死亡课程节选

And I believe -- I truly believe that their darkest days are now behind them.
WHITEHOUSE: Change of Command, End of Combat Operations Ceremony