free的副词形式：freely
adv.不受限制地;无拘无束地;自由地;无阻碍地;畅通地;自愿地;甘心情愿地
例句：
I freely admit that I made a mistake.
我爽快地承认我犯了错误。
The sheep are allowed to roam freely on this land.
绵羊可以在这片地上自由走动。
The princess was not recognized and mingled freely with the crowds.
公主没有人认出，随意混杂在人群之中。
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