扛 lift with hands, raise
鼎 an ancient cooking vessel, tripod caldron
扛鼎(本意):raise a tripod caldron / lift a tripod caldron with one's hands
扛鼎(独当一面):take charge of sth alone--徐静雷扛鼎《我和爸爸》
鼎鼎 [great;be very important] 盛大
鼎力 [your kind help;your kind efforts] 敬辞,大力(帮助)(表示请托或感谢时用)
鼎盛 [in a period of great prosperity;at the height of power and splendour] 正当兴旺发达或强壮