试试网球、羽毛球或帆板运动。简而言之，任何有挑战性的东西。

Try tennis, badminton or windsurfing. In short, anything challenging.

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然而找到真正的地产的拥有者是十分有挑战性的。

And then there's the challenge of trying to figure out who really owns the land.

youdao

尽管自动文本语言翻译目前相当有效，语音识别还是十分具有挑战性的。

Although automatic text translators are now reasonably effective, voice recognition has proved more challenging.

youdao

I think what part of Sustain Dialogue does and just being in community with people it also challenges you. -It does.

我觉得，“持续对话“所做的部分活动,和与你不同的人在一起交流,这很有挑战性，-的确。

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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

We're still close enough to the summer that the air is not just filling us up with extra static electricity, so it's a little more challenging here.

我们现在离夏天更近了,这样空气中不总是,充满额外的静电，所以这时做实验,会有一些挑战性。

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