This extra effort makes a lasting _________, the kind that often results in some fortune with extra business.
—Can I help you with it?—I appreciate your ________,but I can manage it myself.
You'd better write down the phone number of that restaurant for future ________.
Teachers have to constantly update their knowledge in order to maintain their professional ________.(2011·江苏,27)
Last year the number of students who graduated with a driving license reached 200,000,a(n) ________ of 40,000 per year.(2010·江西)
It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.