a thorn tree的用法和样例：
- From the monent it leaves the nest, it searches for a thorn tree, and does not rest until it has found one.
- From the moment it leaves the nest it searches for a thorn tree, and does not rest until it has found one.
- Long Ago, there was a bird to sang just once in its life. From the moment it left its nest, it searched for a thorn tree.
- His sister is a thorn in his flesh.
- He was a thorn in the police's flesh.
a thorn tree的相关资料：