1.偶然 (opp. on purpose)
1.by chance, without being planned or intended
1.You may come to see this by an off-the-cuff comment, quite by accident.
您可能会看到这种由一个现成的，袖口很偶然评论。
2.You know, one of the things that I'd like to say upfront is that I'm really here by accident.
如你们所知道的，有一件事我想说在最前面我能来到这里实在是很偶然。
3.I'm sorry to tell you that your medicine bottle (cosmetic bottle) was broken by accident . I sincerely apologize for that.
非常抱歉，服务员在为您清理房间时，不小心打碎了你的药瓶（化妆品瓶子）。
4.The enterprise would have been abandoned if she had not by accident met him coming homeward as she turned away.
她转身离开的时候，正巧碰上了外出回家的牧师，要不是这样，她的计划就被她放弃了。
5.It's an important lesson for kids to understand -- that some of these laws get broken by accident and that laws have to be interpreted.
对孩子们来说这是一个重要的教训—有些法律是人们无意之中触犯的这些法律应该得到解释，以被人们所知晓。
6.LIEBGOTT: Well, you know, I'm always fumbling with grenades. It would be easy if one went off by accident, you know?
李高特：喔，你们知道，我经常玩手榴弹，哪一次失手了也说不定。
7.I never have enough of the soap dishes that drain (I don't like the plate types), and I "discovered" this by accident.
底部可以控水的肥皂盒我从不嫌多（而我不喜欢那种碟子状的）。
8.We rode our bikes in the parade (by accident), enjoyed a few pints and even did a bit of fly-fishing near our riverside accommodations.
我们骑车（碰巧）遇到阅兵，痛饮了一些啤酒，甚至在河边的住处垂钓。
9.There had never been a sighting of a megamouth shark (Megachasma pelagios) before the first specimen was caught, quite by accident, in 1976.
以前从来没有人亲眼目睹过巨嘴鲨，直到1976年人们才有幸捕获第一只这样的动物。
10.If he knew this, it would have had to be by accident.
假如他已知道此事，那一定会是偶然的。