意味: こうかくn. (Kanji=口角) corner of the mouthn. (Kanji=広角) wide-angle, providing a wide area of viewn. (Kanji=甲殻) carapace, turtle's shell; shell, hard outer covering of certain organisms; crustn. (Kanji=降格) demotion, reduction to a lower rank or positionv. (Kanji=降格する) demote, lower in rank or position