improve

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improve

1.My teacher said that she would give me a(n)（）to improve my mark by doing the assignment again.2.Specialists will be invited to （）our present system before we try to improve it.3.Since 1980s, people have studied how to improve the information （） of barcode symbol.4.In order to improve（）at the interface, the surface of the（）must be treated.5.herbs can be used to help the patient to improve and promote blood circulation.6.I am sorry to learn that you have made no (improve)（）on the design at all.7.Fillers are most often added to improve tensile strength, and（）.