他声音里的颤抖透露出对计划可行性的不确定。

The shakiness in his voice revealed his uncertainty about the plan's feasibility.

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The shakiness in his voice revealed his uncertainty about the plan's feasibility.

shakiness 是形容词 shaky(颤抖的、摇晃的)加上名词后缀 -ness 构成的名词,表示“颤抖、不稳定的状态”。

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