banal
词根词缀：
abandon v. 放弃
a 加强 + ban 禁止 + don 给予 → 禁止给 → 放弃
ban n. 禁止；禁令
banal adj. 平庸的；陈腐的
ban 禁止 + al …的 → 被禁止的 → 陈腐的
banish v. 驱逐
ban 禁止 + ish 使… → 禁止〔入境〕→ 驱逐
banister n. （楼梯的）栏杆
ban 禁止 + ister 表人或物 → 禁止入内 → 栏杆
数据来源：新东方英语词汇速记大全
相关例句：
He made banal comments about the weather.
他关于天气的评论纯系陈词滥调。
I couldn't think of anything to say that wouldn't sound banal.
我想不出任何听上去不是陈词滥调的话可说。
The text is banal
课文索然无味。
Bland, banal music tinkled discreetly from hidden loudspeakers.
隐藏的喇叭里幽幽地传出平淡乏味的音乐。
With children in tow I was planning a more wholesome, though equally as banal, existence.
因为有孩子跟着，我计划过一种更有益健康，但同样平淡无奇的生活。
At that age, I had little wisdom and what some would call a fairly banal Irish Catholic upbringing: my father was a gifted horseman, a raging alcoholic, and a crisis-fomenting tyrant.
在那个年龄，我有一点智慧和可以被称为一个平凡的爱尔兰天主教徒的抚养：我的父亲是一个天才的骑师，一个疯狂的酗酒者和一个助长危机的暴君。