She suddenly felt old and weary.

她突然感到了衰老和疲倦。

《牛津词典》

She suddenly felt totally drained.

她突然感到精疲力竭。

《牛津词典》

She suddenly felt faint.

她突然感到快要昏倒。

《牛津词典》

The moment he smelled the air of these places he felt like a prisoner suddenly set free.

VOA: special.2009.04.04

This waves crashing over me and looking up and see this incredible...suddenly I just felt like I disappeared at that very moment.

海浪向我涌来，抬头便看到,这难以置信的落日，我突然感到,就在那一刻，我消失了。

普林斯顿公开课 - 人性课程节选

Suddenly,Mister Mindon felt taller.

VOA: special.2010.05.29

Surveying the hundreds of memoirs and novels that lined her hallway, I suddenly felt at home.

FORBES: Karin Germany Value in An Exceptional Friend

The conversation was over in a flash, but I suddenly felt quite different about Al Gore.

WSJ: Excerpt: From the Letters of George H.W. Bush

When I got to the Palo Alto airport, I suddenly felt so clammy and dizzy that I scrubbed our flight.

FORBES: Hidden Dehydration Danger