also modelling, 1650s, "action of bringing into desired condition," verbal noun from model (v.). Meaning "action of making models" (in clay, wax, etc.) is from 1799. Meaning "work of a fashion model" is from 1941.
权威例句
1. She'd like to be a film actress, but at present she's modeling.
她想当电影演员, 但现在她在做模特儿.
2. Current sources are most useful in modeling the behavior of transistors.