正襟危坐

to sit upright and still (idiom)

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

lapel / overlap of Chinese gown / fig. bosom (the seat of emotions) / to cherish (ambition, desires, honorable intentions etc) in one's bosom

surname Wei

danger / to endanger / Taiwan pr. [wei2]

to sit / to take a seat / to take (a bus, airplane etc) / to bear fruit / variant of 座[zuo4]