double-tongued

The double-tongued politician promised tax cuts to one audience and increased spending to another.

用法提示：形容词修饰 politician，表示其言行不一、欺骗性。

She became wary of her double-tongued colleague, who always agreed with her in meetings but later undermined her plans.

用法提示：形容词修饰 colleague，指出其欺骗性行为。

A double-tongued person cannot be trusted with important secrets.

用法提示：形容词修饰 person，强调其不可信赖的特性。