擅自[shàn zì]
词典arbitrarily：任意地；武断地；反复无常地；肆意地。
词典do sth. without authorization：擅自。
词典take the liberty：冒昧；擅自做某事。
词典擅自在线翻译
词典make bold to：擅自。
词典presume：推测；以为，认为；假定，假设；意味着。
擅自[shàn zì]
do sth. without authorization; take the liberty; arbitrarily:
例：擅自逮捕
make unwarranted arrest;
擅自决定
make arbitrary decisions;
擅自离去
leave without notice;
擅自动用
take the liberty of using sth.;
擅自提[抬]价
arbitrary price increases; raise prices without authorization;
擅自行动
take presumptuous action on one's own; act presumptuously;
擅自作主
act arbitrarily [without authority]; take an unauthorized action;
不得擅自修改。
No unauthorized changes be made.
你不在时， 她擅自用你的打字机。
She took the liberty of using your typewriter while you were away.
1. without leave：ceramic amplifier (压电)陶瓷放大器 | without leave 擅自 | groups of capital 资本群
2. take the liberty of：take pity on 怜悯 | take the liberty of 擅自 | take measures 采取措施
3. 擅自的反义词
3. on his own authority：善意 bona fide | 擅自 on his own authority | 商品检验证书 commodity inspection certificate
4. make bold to：make believe 假装 | make bold to 擅自 | make book 打赌