是的，很有趣，也很有挑战性。我经常跟不同的人打交道。

Yes, it's interesting and challenging. I meet a lot of different people.

youdao

是的，很有趣，也很有挑战性。我经常跟不同的人打交道。你呢？

Yes, it's interesting and challenging. I meet a lot of different people. How about you?

youdao

还有，建立有价值的生态系统服务，以塑造建筑环境也很有挑战性。

Still, there is merit to using ecosystem services to shape the built environment.

youdao

because school can be really challenging and stressful,

因为学校的学习很有挑战性也很有压力，

百慕大出身 - SpeakingMax英语口语达人

And it's very challenging.

而且也很有挑战性。

学外语的时候 - SpeakingMax英语口语达人