| 一对 | yī duì | couple; pair |
| 一 | yī | one; 1; single; a (article); as soon as; entire; whole; all; throughout; "one" radical in Chinese characters (Kangxi radical 1); also pr. [yao1] for greater clarity when spelling out numbers digit by digit |
| 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 |
| 及时 | jí shí | in time; promptly; without delay; timely |
| 反应 | fǎn yìng | to react; to respond; reaction; response; reply; chemical reaction; CL:個|个[ge4] |
| 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] | |
| 必应 | Bì yìng | Bing (search engine) |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |
| 微信 | Wēi xìn | Weixin or WeChat (mobile text and voice messaging service developed by Tencent 騰訊|腾讯[Teng2 xun4]) |
| 查 | chá | to research; to check; to investigate; to examine; to refer to; to look up (e.g. a word in a dictionary) |
| zhā | see 山查[shan1 zha1] | |
| Zhā | surname Zha | |
| 手机 | shǒu jī | cell phone; mobile phone; CL:部[bu4],支[zhi1] |
| 号 | hào | ordinal number; day of a month; mark; sign; business establishment; size; ship suffix; horn (wind instrument); bugle call; assumed name; to take a pulse; classifier used to indicate number of people |
| háo | roar; cry; CL:個|个[ge4] | |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |