dual nature的用法和樣例：
例句
- Lacquer has the dual nature of painting and craft.
漆畫(huà)有繪畫(huà)和工藝的雙重性。 - The doublet nature of this and other lines in the Na spectrum indicates a doubling of the expected number of states available to the valence electron.
鈉光譜中的這條線(xiàn)以及其它線(xiàn)的雙重性指出預期價(jià)電子可用的狀態(tài)數是雙重的。
