他们花了两周时间探索这片未知的沙漠。

They spent two weeks ___exploring the unknown desert.

这篇文章深入探讨了人工智能对未来就业市场的影响。

The article ___explores how artificial intelligence will impact the future job market.

他们在会议上仔细探讨了各种可能的解决方案。

They ___explored different possible solutions carefully during the meeting.