underachieve

v.学习成绩不良,未能发挥学习潜能

表现不佳；成绩不理想；不充分发挥潜力

动词

1. John has the potential to excel, but he tends to underachieve in his academic studies.
约翰有能力做得很出色，但在学业上他往往表现不佳。
2. The team has been underachieving this season, failing to meet the expectations of their fans.
这支球队本赛季表现不佳，未能达到球迷们的期望。