1. The researchers offer two hypotheses for this rise in grumpiness. 研究人员就这种暴躁情绪的产生给出了两种假设。
2. Different people thought that it was a sign either of indifference, frustration, or grumpiness. 不同的人会认为它代表冷漠、失望或生气。
3. Mrs Oughtons once tried to take him to the vets due to his grumpy looks, but the vet said grumpiness is just part of his Burmese nature. 奥顿夫人曾为了它这幅愁容专门带它看了兽医，但兽医说，因为皮普是波斯猫和缅甸猫的混种，它的那副表情只是缅甸猫的自然特征而已。
4. Jessica Alexander of the Sleep Council said women's grumpiness may be worsened because they shoulder most of the household chores in the morning. 睡眠研究会的杰西卡·亚历山大说，由于女性早上得做很多家务活，所以她们的“下床气”更为严重。
5. Jessica Alexander of the Sleep Council said womens grumpiness may be worsened because they shoulder most of the household chores in the morning. 睡眠研究会的杰西卡·亚历山大说，由于女性早上得做很多家务活，所以她们的“下床气”更为严重。
