"It was hard for me to believe," she recalls. "at that time, it was thought that humans, and only humans, used and made tools."

“对我来说难以置信，”她回忆说，“当时，人们认为有且只有人类能够使用并制造工具。”

youdao

It's hard for me as a mother to realize that for all I try, my kids may only remember the tiniest glimpses of time from these days.

作为一个母亲，去意识到我所做的所有的努力，我的孩子们可能只记得从前那些日子的丁点，这是很难的。

youdao

It can be hard to justify taking time for such an exercise when there seem to be far more important things to work on, but this is the only way you can break free - so just trust me and do it.

在似乎你有更加重要的工作等你去完成的情况下，花时间来做这样的一个计划表是否适当，这很难说。 但是这是唯一一个可以让你重获自由的机会--所以姑且相信我去做吧。

youdao

You know, at 51, it's hard for me to learn new pieces but he would not only learned them and he would memorized them and of course ingest them in such a way that, you know, he would owned the pieces.

NPR: Yo Yo Ma Reflects on Rostropovich