| 暗中 | àn zhōng | in the dark; in secret; on the sly; surreptitiously |
| 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 |
| 唯 | wéi | -ism; only; alone |
| wěi | yes | |
| 一会 | yī huì | a moment; a while; in a moment; also pr. [yi1 hui3] |
| 退款 | tuì kuǎn | to refund; refund |
| 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] | |
| 网站 | wǎng zhàn | website; network station; node |
| 建设 | jiàn shè | to build; to construct; construction; constructive |
| 手机 | shǒu jī | cell phone; mobile phone; CL:部[bu4],支[zhi1] |
| 定位 | dìng wèi | to orientate; to position; to categorize (as); to characterize (as); positioning; position; niche |
| 追踪 | zhuī zōng | to follow a trail; to trace; to pursue |
| 找 | zhǎo | to try to find; to look for; to call on sb; to find; to seek; to return; to give change |
| 人 | rén | man; person; people; CL:個|个[ge4],位[wei4] |