但是，没有约束性协议，就没有机制决定一个国家是否采取了有效行动。如果它们不这样做，也不用承担任何后果。
But without binding agreements, there is no mechanism to determine if a country is taking effective action and there are no consequences if they are not.
溶解性：不溶于水，能溶于通常的有机溶剂。
Solubility: Insoluble in water, but soluble in ordinary organic solvents.
综述了近年来此类催化剂以其独特的不溶性、酸性、活性、选择性在有机合成反应中的广泛应用。
And this paper summarizes their progress and wide use in organic reactions according to their unique non - dissolve property, acidity, activity and selectivity in recent years.
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