4周搞定2000+托福核心词
厌倦；令人厌烦的事物
boredom
常考释义
According to conventional theory, yawning takes place when people are bored or sleepy and serves the function of increasing alertness by reversing, through deeper breathing, the drop in blood oxygen levels that are caused by the shallow breathing that accompanies lack of sleep or boredom.
根据传统理论，当人们无聊或者困倦时就会打哈欠。伴随睡眠不足或无聊的是浅呼吸，而浅呼吸会降低血液中氧的含量。打哈欠可以通过深呼吸逆转这一点，增加血液中氧的含量从而达到提高警觉性的功能。
来源于：阅读OFFICIAL18 P2n. 厌烦；无聊；乏味
Many of the audience walked out through sheer boredom.
许多观众因为无聊透顶而退场。
They began to chat to relieve the boredom of the flight.
他们为了给无聊的旅途解闷而开始聊天。
He had given up attending lectures out of sheer boredom.
那些讲座太无聊了，他不去听了。
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