So in those areas, aspens can only be as old as when the last ice sheets disappear.

因此在这些地区颤杨的年龄可以追溯到最后一块冰原消失的时候。

I practice bathroom sound effects too like the sound a toilet roll makes when you pull off the last sheet.

我也会练习浴室里的声音效果，比如当你撕掉最后一张厕纸时，卫生卷纸发出的声音。

No one could confidently say, for instance, when the last ice sheets had retreated or at what time in the past the Cro-Magnon people had decorated the caves of Lascaux in France.

例如，谁也没有把握说出，最后一批冰盖是在什么时候退缩的，法国的克罗马农人是在过去什么时候装饰拉斯科山洞的。

The writer of the essay that troubled him was Lancy Davis. He had known the identity of the author before he turned the last sheet over and saw the signature. Already he had some trouble with Lancy.

困扰他的那篇文章的作者是兰西戴维斯。在他翻过最后一张看到签名之前，他就知道作者的身份了。他已经和兰西发生了一些争执。

Then, all at once, she seized the pencil, snatched the last sheet out of Lupin's hands and, as though acting under a sudden inspiration, wrote two " L's" in the middle of a space left open by Lupin.

然后，突然间，她抓起铅笔，从卢平手中夺过最后一张纸，仿佛突然灵机一动，在卢平留出的空白处写下了两个“L”。