No one knows for certain what happened, but it's a fair bet that it was not an accident.
没有人知道究竟发生了什么,但几乎可以肯定这并非意外。
Mathilde! Oh yes. Sorry, I didn't recognize you. Where have you been all these years, Mathilde? I hope you weren't ill. You don't look very well.
玛蒂尔德!真的是你呀!对不起,我没有认出你来。这些年你上哪儿去了,玛蒂尔德?我想你没有病吧,你的脸色看来不太好。