His friendly behavior was a cloak for his evil intentions.
他友善的举动实际上是对邪恶动机的掩盖。
His friendly behavior was a cloak for his evil intentions.
他的友善的行为是他险恶用心的伪装。
For example tax credits for those who purchase electric cars to encourage environmentally friendly behavior.
如给予购买电动汽车者以税收奖励以鼓励环境友好行为。
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