Larry began suffering severe headaches and violent mood swings.拉里开始出现严重的头痛和剧烈的情绪波动。Dieters suffer from violent mood swings.节食者会有激烈的情绪波动。If the wind swings round, we will have to change the sails.如果风向突然变了, 我们得换帆....
我有了头痛的先兆。I had the beginnings of a headache.乌云是下雨的明显先兆.Black clouds are an unmistakable sign of coming rain.那被认为是一种不幸的先兆.It is said to be an omen of misfortune....