| HSK | Not in HSK |
|---|---|
| FREQUENCY | Unknown |
| 证 zhèng | prove, confirm, verify; proof |
| 券 quàn | certificate, ticket; title deeds |
| 柜 guì | cabinet, cupboard; shop counter |
| 台 tái | platform; unit; term of address |
| 买 mǎi | buy, purchase; bribe, persuade |
| 卖 mài | sell; betray; show off |
| 中 zhōng | central; center, middle; in the midst of; hit (target); attain |
| 心 xīn | heart; mind, intelligence; soul |