常見(jiàn)例句This layer of rock contains a lot of flint. 這一巖層中有大量燧石。The inner layer of the wall of a spore. 孢子內(nèi)壁孢子壁的內(nèi)層There is a fine layer of dust on the desk. 桌子上有一層薄薄的塵土。quadratic layer 二次層The middle, usually fleshy layer of a fruit wall. 中果皮果皮中間通常含肉較多的那一層Their difference is a quadratic residue of 17. 它們的差是17的平方賸餘。 返回 quadratic-layer