二次函数

quadratic function

two / 2 / (Beijing dialect) stupid

second (i.e. number two) / second time / twice / (math.) quadratic (of degree two)

next in sequence / second / the second (day, time etc) / secondary / vice- / sub- / infra- / inferior quality / substandard / order / sequence / hypo- (chemistry) / classifier for enumerated events: time

envelope / case / letter

variant of 函[han2]

function (math.)

to count / to count as / to regard as / to enumerate (sb's shortcomings)

number / figure / several / CL:個|个[ge4]

frequently / repeatedly