As President Barack Obama delivered the commencement speech at a Michigan high school's graduation ceremony, not everyone was paying rapt attention.

One member of the Kalamazoo Central student choir sitting behind the president had some serious trouble staying awake.

In videos posted online, the boy is seen succumbing to a series of gaping yawns as Obama offers advice on how to succeed in life. Later, the boy's eyes droop and his head rolls forward until his chin rests on his chest, and it appears he has nodded off.

Only occasionally is the unidentified teen jolted into consciousness as his classmates erupt into cheers and applause for the president.

Obama delivered the school's commencement because it won the Race to the Top Commencement Challenge competition.

欢迎大家来贡献自己的翻译稿！

哥哈欠连天，尽显睡意中……

哥好困啊，头好重啊……

哥坐如钟，纹丝不动……

哥不行了，仰头大睡，别吵哥哈……

【小编随笔】“瞌睡男”小盆友是真的不把总统放在眼里呢，还是昨晚没睡好呀~嗯哼！哥只是个传说~ZZZzzz~~