Underachieve
vi. 未能充分发挥学习潜力, 学习成绩低于智力测验中所得分数
📖 牛津释义
underachieve
v[I]
(euph 婉) do less well than was expected, esp in school work 成绩未如理想（尤指功课）.
🗣️ 情景例句
and I promised to have lunch with both of them today.
我答应今天和他们共进午餐。
I'm going home.
我正要回家。
And I advise you not to eat fruit that isn't ripe in future.
还有，我劝你今后不要吃不熟的水果。