In context, it's clear that he's talking about making an effective graphical presentation, not about suppressing evidence.

从上下文上看，他谈的是有关制作一份有效的图片介绍文件，并不是压抑证据。

youdao

The police were accused of suppressing vital evidence.

警方被指隐瞒关键证据。

《牛津词典》

But until now, the researchers say, there has been no true evidence that water's appetite-suppressing benefits ever translate into actual weight loss.

但是在这之前，研究人员说没有确凿的证据说明喝水抑制食欲能让体重减轻。

youdao

Meanwhile, the former deputy-head of the UN mission in Afghanistan accused his former boss of suppressing evidence of fraud in the presidential election in August.

ECONOMIST: Politics this week

Mr Yates also said that "perhaps more could have been done" to investigate the allegations, which first surfaced in 2005, but rejected claims of deliberately suppressing evidence of wrongdoing by journalists and executives.

BBC: Culture, Media and Sport Committee

During the impeachment of Joseph Estrada, Mrs Arroyo's predecessor, his allies succeeded in suppressing critical evidence, causing the trial to collapse in rancour.

ECONOMIST: President Arroyo toughs it out