| 黑盒 | hēi hé | black box; fig. system whose internal structure is unknown |
| 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 |
| 抖 | dǒu | to tremble; to shake out; to reveal; to make it in the world |
| 音 | yīn | sound; noise; note (of musical scale); tone; news; syllable; reading (phonetic value of a character) |
| 密友 | mì yǒu | close friend |
| 好友 | hǎo yǒu | close friend; pal; (social networking website) friend; CL:個|个[ge4] |
| 互动 | hù dòng | to interact; interactive |
| 记录 | jì lù | to record; record (written account); note-taker; record (in sports etc); CL:個|个[ge4] |
| 运营 | yùn yíng | to operate; to be in operation; to be in motion; to do business; scheduled service (train, bus etc) |
| 最 | zuì | old variant of 最[zui4] |
| zuì | variant of 最[zui4] | |
| zuì | most; the most; -est (superlative suffix) | |
| 久 | jiǔ | (long) time; (long) duration of time |
| 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] | |
| 免费 | miǎn fèi | free (of charge) |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |
| 咔 | kǎ | (used as phonetic "ka") |
| 咔 | kǎ | (used as phonetic "ka") |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |