Learner's definition of BANE
[singular]
: a cause of trouble, annoyance, or unhappiness烦恼的原因；不满的原因 —
usually used in the phrase the bane of通常用于短语the bane of -
The ugly school uniforms were the bane of the students' lives.这种难看的校服让学生的生活很不愉快。
-
She was the bane of my existence. [=she made my life very unhappy, difficult, etc.]她使我生活得很不愉快。