question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

Please have a seat. / Please sit down.

Please wait

doctoral thesis; dissertation

short essay

(honorific) to give / (honorific) to do something for me/us

下さる: to give

teachers / doctors

(informal) no problem

unthinkable, out of the question