miệt mài

Từ điển Việt Anh (Vietnamese English Dictionary)

	[miệt mài]
		Cũng (mài miệt)
		to give oneself upto; to devote oneself to.
		become utterly absorbed/engrossed in something; set (to), busy oneself (with)
			miệt mài làm việc
			forget oneself in work, be wrapped up in one's work

to give oneself upto; to devote oneself tọ