Word decomposition
The explanation of water chestnut is an annual aquatic herb with hard shell and horns, which is called "water chestnut" or "water chestnut" and can be eaten. Radical: meter; An instrument used to reflect images: a mirror (also called "glasses"). Mirror stage. Cosmetic box Mirror. Bronze mirror. Cosmetic mirror For all kinds of instruments made by optical principle, the lenses on them are generally made of glass: lenses. Lens. Glasses. Gastroscope. Convex mirror, concave mirror and triangular prism. Telescope.