exposing functional

例句：

1. 1. The scientist exposed the virus to the lab for testing.
   科学家将病毒暴露在实验室进行测试。
2. 2. The detective uncovered a hidden clue in the old book.
   侦探在旧书中发现了一个隐藏的线索。
3. 3.The artist revealed the secret behind the painting.
   艺术家揭示了这幅画背后的秘密。