| 黑 | Hēi | abbr. for Heilongjiang province 黑龍江|黑龙江[Hei1 long2 jiang1] |
| hēi | black; dark; sinister; secret; shady; illegal; to hide (sth) away; to vilify; (loanword) to hack (computing) | |
| 科技 | kē jì | science and technology |
| 查询 | chá xún | to check; to inquire; to consult (a document etc); inquiry; query |
| 车辆 | chē liàng | vehicle |
| 行驶 | xíng shǐ | to travel along a route (of vehicles etc) |
| 轨迹 | guǐ jì | locus; orbit; trajectory; track |
| 定位 | dìng wèi | to orientate; to position; to categorize (as); to characterize (as); positioning; position; niche |
| 保姆 | bǎo mǔ | nanny; housekeeper |
| 级 | jí | level; grade; rank; step (of stairs); CL:個|个[ge4]; classifier: step, level |
| 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] | |
| 大 | dà | big; huge; large; major; great; wide; deep; older (than); oldest; eldest; greatly; very much; (dialect) father; father's elder or younger brother |
| dài | see 大夫[dai4 fu5] | |
| 咖 | kā | coffee; class; grade |
| 在线 | zài xiàn | online |
| 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 |
| 系统 | xì tǒng | system; CL:個|个[ge4] |