求翻译：外部激励（extrinsicmotivation）：通过外部的力量来加强做事情的动机，或者说来自个体外部的激励，如受到他人的表扬来达到一个公开宣称的目标。在学习上表现为学生通过寻求外在奖励或诱因而获得的推动力。　是什么意思？

External incentive (extrinsicmotivation): by external forces to strengthen the motivation to do things, or from outside of the individual incentive, as praised by others to achieve a publicly stated goal.　Performance in learning by seeking external rewards or incentives for the students gained impetus.