她的情绪总是变幻不定—时而欢喜，时而忧伤。

Her moods kept changing—now happy, now sad.

《牛津词典》

他是一个很有魅力的人，时而忧伤时而欢笑。

He was a charming mixture of glum and glee.

youdao

她的情绪总是变幻不定，时而欢喜，时而忧伤。

Her moods kept changing-now happy, now sad.

youdao

爵士乐让聆听者时而忧伤，时而欢快，时而平静，时而精神焕发。

Jazz can make the listener feel sad or joyful, quiet or full of energy.

youdao

爵士乐让聆听者时而忧伤，时而欢快，时而平静，时而精神焕发。

Jazz can make the listener feel sad or joyful, quiet or full of energy.

youdao