Yet there is surprisingly little evidence to back up this impression.

但是，令人奇怪的是，几乎没什么证据能支持这种印象。

youdao

The blogger also has the impression that the site has helped expose people to music they wouldn't otherwise hear, and may even help drive CD sales, although there's no hard evidence of this.

他同时觉得网站可以帮助人们接触他们在其他途径无法听到的音乐，甚至有可能提高CD的销量，虽然还没有有力的证据证明这一点。

youdao

Her new impression of him is strengthened by the evidence of an old Darcy family retainer who has nothing but good to say of Darcy.

她对于他的这种新印象，由于达西家一个老家仆的证明而又得到加深，这老家仆对达西赞不绝口。

youdao

To overturn such an impression would require overwhelming and incontrovertible evidence, not vague recriminations from a few former employees.

FORBES: Masha Gessen Is A Heroic Opposition Journalist, Not a Kremlin Stooge

You see, the secret, I felt - and I have always felt, as an advocate - is to find a memorable but simple phrase that will stay in a jury's mind, that they won't forget easily, and that sums up for them graphically exactly the impression one hopes they're getting about that man from the evidence.

BBC: News Online

To paraphrase the old saying, a facial impression is worth 1000 words (and it also has the convenient feature of not being persuasive evidence in court).

FORBES: Another Reason Most Day Traders Are Deluding Themselves