The new plan for traffic control is being put into action on an experimental basis.

新的交通管理方案正在试验实施。

《牛津词典》

The foundation for an argument, a belief, or an action; a basis.

根据争论，信仰或行动的基础；依据。

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Selection is often the basis for more complex interactions-once a user has chosen something, she is then in the appropriate context for performing an action on that thing.

选择是组成复杂交互的基础，一旦使用者选择了某个对象，之后便可以在某种适当的情境下执行针对这个对象的操作。

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An informed citizenry has always been the basis for achieving the consensus that leads to collaborative action and our sustained progress.

FORBES: Why America Needs An Annual Report