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
I made an appointment with the doctor at three.
我和医生约好3点钟看病。
Think much, speak little, and write less.
勤思考，寡发言，少落笔。
But most probably it will all depend upon campers themselves:
但最重要的或许是露营者自己，