如果材料包含许多离域键，则它可能会很软。
If a material contains many delocalized bonds, it is likely to be soft.
硼作为周期表中典型的缺电子元素，易于形成多中心离域键。
Boron, the prototypical electron-deficient element in the periodic table, is well-known for multicenter bonds.
硼作为周期表中典型的缺电子元素，易于形成多中心离域键。
Boron, the prototypical electron-deficient element in the periodic table, is well-known for multicenter bonds.
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