adventurous; breathtaking; thrilling; touch-and-go

1. 孩子們喜歡對別人講他們驚險的活動。
   The children enjoyed relating their adventures to others.
2. 實際上，虛擬現(xiàn)實就是利用計算機的軟件和硬件去產生一種境界的仿真，如仿真一個學習場所，一次驚險的行為等等。
   In fact, virtual reality is exploiting software and hardware of　the computer to generate a simulation of an environment, such as an easeful classroom, a breathtaking action and so on.
3. 演出快進行到最驚險的部分時響起了咚咚的鼓聲。
   A drum roll preceded the most dangerous part of the performance.

驚的英語翻譯：

險的英語翻譯：