app 用

yòng to use; to employ; to have to; to eat or drink; expense or outlay; usefulness; hence; therefore

企

qǐ to plan a project; to stand on tiptoe; Taiwan pr. [qi4]; abbr. for 企業|企业[qi3 ye4]

有效

yǒu xiào effective; in effect; valid

期限

qī xiàn time limit; deadline; allotted time

@fuliqianm 可靠

kě kào reliable

企

qǐ to plan a project; to stand on tiptoe; Taiwan pr. [qi4]; abbr. for 企業|企业[qi3 ye4]

名

míng name; noun (part of speech); place (e.g. among winners); famous; classifier for people

qdo