短語詞組短語alkali i metals 堿金屬Alkali earth metals 堿土金屬alkali metals atom 堿金屬原子alkali metals atoms 堿金屬原子alkali metals halide 堿金屬鹵化物content of alkali metals 堿金屬含量compound of alkali metals 堿金屬鹽balance of alkali metals 堿平衡 返回 alkali metals