The noun 子女 (zǐnǚ) means "children" and refers to one's sons and daughters collectively. It is a more formal term than 孩子 and is typically used in written or official contexts. For example, 他的子女 means "his children."
他的子女都在国外工作。
Tā de zǐnǚ dōu zài guówài gōngzuò.
His children all work abroad.
这项政策对有子女的家庭影响很大。
Zhè xiàng zhèngcè duì yǒu zǐnǚ de jiātíng yǐngxiǎng hěn dà.
This policy has a big impact on families with children.
她把子女培养得非常优秀。
Tā bǎ zǐnǚ péiyǎng de fēicháng yōuxiù.
She raised her children to be very outstanding.
他的子女都在国外工作。
Tā de zǐnǚ dōu zài guówài gōngzuò.
His children all work abroad.
这项政策对有子女的家庭影响很大。
Zhè xiàng zhèngcè duì yǒu zǐnǚ de jiātíng yǐngxiǎng hěn dà.
This policy has a big impact on families with children.
她把子女培养得非常优秀。
Tā bǎ zǐnǚ péiyǎng de fēicháng yōuxiù.
She raised her children to be very outstanding.