software should prevent the reader from excessive clinking (called "click happy behavior" by Roby,1999,p.98) which could lead to a more superficial,short-term learning.To solve the problem,Hulstijn(1992)proposed to combine the advantages of inferring and glosses into multiple-choice glossing,arguing that such an approach reduces the difficulties presented by insufficient context as well as the possibility of incorrect inferences.
online vocabulary learning system