不要小孩的（形容詞）

(adjective) Describing Individuals or married couples who voluntarily are without children. (NOTE: “childless” is considered negative, and so “childfree” is preferred usage)

EXAMPLE: My childfree brother and his wife are able to take overseas vacations every year.

我兄弟和他太太不要小孩，有條件每年去國外度假。

情緒低落（成語）

(IDIOM) Depressed; unhappy; emotionally low.

EXAMPLE: When I failed to get the promotion I wanted at work, I was so down in the dumps that for several days I considered leaving the company.

我沒有獲得所想要的提拔，情緒特別低落，一連好幾天都想著離開公。