[zhuān xīn]
whole-hearted; attentive; be absorbed; concentrate one's attention
									
										study with undivided attention
										专心学习
									
									
									
										listen attentively to the teacher in the class
										课上专心听讲
									
									
									
										If you don't concentrate more on your work you'll be dismissed.
										假如你不更加专心地工作, 你将被解雇。