It's this strange form that makes race walking such an attractive activity, however, says Jaclyn Norberg, an assistant professor of exercise science at Salem State University in Salem, Mass.
The ability to train and develop an assistant is as important an exercise for you as for her, and will count toward your next promotion.
能否培养和造就一位助手，对你和助手来讲都是很重要的一种锻炼，这对你下次晋级也颇为重要。
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The implementation of the exercise library design idea of coach approach, and storage of secret information condition in intelligent compuer assistant system are totally studied in the paper.