| 保密 | bǎo mì | to keep sth confidential; to maintain secrecy |
| 查询 | chá xún | to check; to inquire; to consult (a document etc); inquiry; query |
| 某人 | mǒu rén | someone; a certain person; some people; I (self-address after one's surname) |
| 行为 | xíng wéi | action; conduct; behavior; activity |
| 轨迹 | guǐ jì | locus; orbit; trajectory; track |
| 最先 | zuì xiān | (the) very first |
| 想到 | xiǎng dào | to think of; to call to mind; to anticipate |
| 的 | de | of; ~'s (possessive particle); (used after an attribute); (used to form a nominal expression); (used at the end of a declarative sentence for emphasis) |
| dí | really and truly | |
| dì | aim; clear | |
| dī | see 的士[di1 shi4] | |
| 驿站 | yì zhàn | relay station for post horses (old) |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |
| 最新 | zuì xīn | latest; newest |
| 数据 | shù jù | data; numbers; digital |
| shù jù | data; numbers; digital; also written 數據|数据 | |
| 在线 | zài xiàn | online |
| 查询 | chá xún | to check; to inquire; to consult (a document etc); inquiry; query |
| 网站 | wǎng zhàn | website; network station; node |