| 社交 | shè jiāo | interaction; social contact |
| 反 | fǎn | contrary; in reverse; inside out or upside down; to reverse; to return; to oppose; opposite; against; anti-; to rebel; to use analogy; instead; abbr. for 反切[fan3 qie4] phonetic system |
| 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 | |
| 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 |
| 速度 | sù dù | speed; rate; velocity; (music) tempo; CL:個|个[ge4] |
| 第一 | dì yī | first; number one; primary |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |
| 快 | kuài | rapid; quick; speed; rate; soon; almost; to make haste; clever; sharp (of knives or wits); forthright; plainspoken; gratified; pleased; pleasant |
| 手 | shǒu | hand; (formal) to hold; person engaged in certain types of work; person skilled in certain types of work; personal(ly); convenient; classifier for skill; CL:雙|双[shuang1],隻|只[zhi1] |
| 社工 | shè gōng | social work; social worker |
| 库 | kù | warehouse; storehouse; (file) library |