| 膝盖HSK 6 | xī gài | knee; (Internet slang) to kneel down (in admiration) | |
| 膝下 | xī xià | at the knee (in reference to children); (salutation used in letters to parents or grandparents) | |
| 促膝谈心 | cù xī tán xīn | to sit side-by-side and have a heart-to-heart talk (idiom) | |
| 卑躬屈膝 | bēi gōng qū xī | to bow and bend the knee (idiom); fawning; bending and scraping to curry favor | |
| 奴颜婢膝 | nú yán bì xī | servile and bending the knee (idiom); fawning; bending and scraping to curry favor |
| 1 | Ouch! I fell down and cut my knee! | |
| 2 | She fell down and hurt her knee. | |
| 3 | The athlete had to withdraw due to a knee injury. | |
| 4 | She has a cat, which sleeps on her lap every night. |