be lost to sight

• 再也看不见了； 消失了

be lost to sight的用法和样例：

例句

1. He will never be able to see again,he has gone blind.
   他再也看不见了，他的眼睛瞎了。
2. It seems that matter is lost when fuels burn.
   似乎燃料燃烧时物质就消失了。
3. They were lost at sea when the ship went down.
   那条船沉没了，他们便在海面消失了。