26个英文字母 Aa 大A像山有条路 Aa 小a像头长小辫。 AaAaAa Aa Aa AaAa apple苹果 [ei] Aa AaAaAaAaAa AaAaAaAaAa ● ● Aa ● ● ● ●● ● .● ● ● ● ●