adj.单调的，乏味的
n.单调，无聊的话，无聊的人

The daily routine of waking up, going to work, and coming back home felt utterly humdrum to Sarah.
每天醒来、去上班、然后回家的例行公事对萨拉来说极为单调乏味。
Despite the stunning scenery outside, the long bus journey was a humdrum affair.
尽管外面风景如画，但长时间的巴士旅行仍旧显得枯燥无味。
His speech was so humdrum that most of the audience had trouble staying awake.
他的演讲太过平淡无奇，大多数听众都很难保持清醒。
The movie, though highly acclaimed, turned out to be a humdrum tale of love and loss.
那部电影虽然广受好评，结果却是一个关于爱与失去的平淡无奇的故事。
She found small-town life humdrum compared to the excitement of the city.
与城市的刺激相比，她觉得小镇生活十分单调。
The novel started off with a bang but quickly descended into a humdrum series of events.
这本小说开头很吸引人，但很快便陷入了一系列平淡无奇的事件中。
His dreams were filled with adventure, a stark contrast to his humdrum reality.
他的梦里充满了冒险，与他单调的现实生活形成了鲜明对比。
The once vibrant artist now leads a humdrum existence, painting by numbers just to pay the bills.
曾经充满活力的艺术家现在过着单调的生活，只是按部就班地画画以支付账单。
The humdrum tasks at the office left her feeling unfulfilled and longing for something more.
办公室里那些单调乏味的任务让她感到不满足，渴望着更多的东西。
In search of an escape from her humdrum life, she decided to take up a new hobby.
为了摆脱单调的生活，她决定培养一个新的爱好。