formative
adj[attrib 作定语]
having an important and lasting influence on the development of sb's character 对某人的性格的形成有重要长期影响的
a child's formative years 儿童性格的形成时期
formative influences in one's life 一生中影响性格形成的因素.
OK, everyone. Less noise, please! Gather round and listen carefully. First we are going to search the beach and the rock pools. Let me remind you what we are looking for: seaweeds, fish, plants, all living things. When you find anything, make a note where