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

center, middle, heart, core (physical center) / center, hub (most important area of activity) / crux, main point

from now on

五大: a male given name

醍醐: ghee / 大悟: enlightenment

大悟: a male given name / 大吾: a male given name

天文台: observatory

live a life

wording (esp. of written text); words

Mongolia