high radioactivity

例句：

1. 1. The mountain is high above the city.
   这座山位于城市之上。
2. 2. He has a high opinion of his own abilities.
   他对自己能力的评价很高。
3. 3. The book is high on the bestseller list.
   这本书位于畅销书排行榜的前列。