| 科普 | kē pǔ | popular science; popularization of science; abbr. of 科學普及|科学普及 |
| 一下 | yī xià | (used after a verb) give it a go; to do (sth for a bit to give it a try); one time; once; in a while; all of a sudden; all at once |
| 乐天 | lè tiān | carefree; happy-go-lucky; optimistic |
| 使 | shǐ | to make; to cause; to enable; to use; to employ; to send; to instruct sb to do sth; envoy; messenger |
| 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] | |
| 百科 | bǎi kē | universal; encyclopedic; abbr. for 百科全書|百科全书[bai3 ke1 quan2 shu1] |
| 访问 | fǎng wèn | to visit; to call on; to interview; CL:次[ci4] |