| 百度 | Bǎi dù | Baidu, Internet portal and search engine, www.baidu.com, listed as BIDU on NASDAQ since 1999 |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |
| 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 |
| 都 | dōu | all; both; entirely; (used for emphasis) even; already; (not) at all |
| Dū | surname Du | |
| dū | capital city; metropolis | |
| 懂 | dǒng | to understand; to comprehend |
| 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] | |
| 线人 | xiàn rén | spy; informer |
| 滴 | dī | a drop; to drip |
| 滴 | dī | a drop; to drip |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |