日期:
来源:雅诚德英语网
This accords with anecdotal evidence that people often yawn in situations where they are neither tired nor bored, but are preparing for impending mental and physical activity.
这与坊间流传的证据相符,即人们常会在既不累也不无聊的情况下打哈欠,只是为即将到来的精神和身体活动做准备。