I wish they wouldn't insist on making the "'s" a separate block. Its a waste of time and we're not here to learn English grammer.
Translated, doesn't your sentence read 'No, I let's clean every year'? Which doesn't make sense? Just asking
I'm pretty sure it says "No, I clean every year." The propositive (let's clean) is 청수합시다, while the declarative (used for regular statements, 'I clean' in this example) is 청수합니다. Notice the ㅅ vs ㄴ.
JP: mainichi (毎日)
CN: měirì (literary)
JP: seisō (清掃)
CN: qīngsǎo (清掃/清扫)
Everday is not an English word. I assume you meant everyday. But everyday means common, average, unremarkable (something you find unremarkable because you see it every day). It does not daily, and it is an adjective, not an adverb.