| 用 | yòng | to use; to employ; to have to; to eat or drink; expense or outlay; usefulness; hence; therefore |
| 期 | qī | variant of 期[qi1]; period; cycle |
| qī | a period of time; phase; stage; classifier for issues of a periodical, courses of study; time; term; period; to hope; Taiwan pr. [qi2] | |
| 合作 | hé zuò | to cooperate; to collaborate; to work together; cooperation; CL:個|个[ge4] |