(historical) the Yue people to the south of ancient China / Abbreviation of 越南 (Etsunan, “Vietnam”).

pass over; cross over; go over / pass; go through (of time) / exceed; surpass; transgress (limit, extent)

(business) poison pill

to make good progress; to go smoothly / (often in negative form) to make little progress; a waste of time

(idiomatic) make no progress, remain unsettled

make sense, stand to reason

a regular verb

irregularity, unsteady, disorderly

regular; systematic

(physics) valence band; a highest range of electron energies in an insulator or semiconductor that can be populated; it corresponds to the valence electrons of the constituent atoms