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Regarding the verbs Abstain and Maintain, why are they spelt differently as nouns Abstinence, Maintenance even though they seem like they ... ... <看更多>

resilience : noun . the capacity of a person to maintain their core purpose and integrity in the face of dramatically changed circumstances. Join Jenni... ... <看更多>

Helix Attribute: Sustainability Sustainability (noun): Avoidance of the depletion of natural resources in order to maintain an ecological balance. Fun fact! A ... ... <看更多>