Undercharged
v. 少收钱( undercharge的过去式和过去分词 ); 未给（枪等）装足火药; 对…充电不足
🗣️ 情景例句
She is giving me piano lessons in exchange for her English classes.
我教她英语，她教我弹钢琴。
Friendship multiplies joys and divides griefs.
友谊可以增添欢乐，可以分担忧愁。
I owe my success to my Mom.
我的成功归功于母亲。