正中

middle / center / right in the middle or center / nub

first month of the lunar year

straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive

China / Chinese / surname Zhong

within / among / in / middle / center / while (doing sth) / during / (dialect) OK / all right

to hit (the mark) / to be hit by / to suffer / to win (a prize, a lottery)

exactly what one wants

to hit the nail on the head (idiom)