"take the liberty of doing sth" liberty的意思是“自由、许可”。take the liberty of 后接动词的ing形式，表示夺走了做某件事的自主权，而把这件事情做了。 to do something that will have an effect on someone else, without asking their permission 在未经他人允许的情况下做会影响他人的事情;擅自做…，自行作主干… I took the liberty of booking theatre seats for us. 我自作主张给大家预订了戏票。