Unfortunately, the few scientific investigations of yawning have failed to find any connection between how often someone yawns and how much sleep they have had or how tired they are.

不幸的是，少数针对打哈欠的科学调查未能发现人们打哈欠的频率与他们睡觉时长和疲劳程度之间有任何联系。

youdao

How far to go, or how tired, I do not care, just want to point you happy.

走了多远，有多累，我都无所谓，只想你能开心点。

youdao

At the end of every day, jot down a brief note on how peppy or tired you felt.

每天结束时，随便写上一小段，记下你感到多么有活力或多么疲劳。

《柯林斯英汉双解大词典》

"Regardless of how hard they worked or how how tired or how hungry they are, it's a tremendous victory for them, " Park said.

CNN: See daring rescue of hiker

But no matter how tired or hopeless I am feeling, hip-hop helps me look beyond my own circumstances to find the determination I need to move forward.

NPR: Finding Hope in Hip-Hop

How tired am I of the are men or women better debate?

FORBES: Negotiation is a Skill and Neither Gender is "Better"