保 (bǎo)
Origin:
甲骨文的“保”字是一个大人手里抱着襁褓里的婴儿的形状。本义是“养育”、“抚养”，引申为“保护”、“保佑”等意思。
On oracle bone inscriptions, “保” looks like an adult holding a baby. Its original meaning is to raise, which then extended to protecting and blessing.
Meaning:
defend; protect; keep; preserve
Words:
保持(bǎochí): to maintain
保存(bǎocún): to conserve; keep; preserve
保护(bǎohù): to protect; safeguard
保健(bǎojiàn): healthcare; health protection
保留(bǎoliú): to continue to have; retain
Sentences:
1、Wǒ zǒu le, shuí lái bǎohù nǐ ne?
我走了，谁来保护你呢？
我走了，谁来保护你呢？
Who will protect you if I leave?
2、Wǒmen měitiān dōu yīnggāi bǎochí hǎo de xīnqíng.
我们每天都应该保持好的心情。
我们每天都应该保持好的心情。
We should stay in a good mood every day.
