important的名詞是什么?

　　例句：

　　Parents are the most important people in a child's world.

　　父母在兒童的天地里是最重要的人。

　　It's very important to me that you should be there.

　　你應該到場，這對我很重要。

　　It is important to develop good study skills.

　　培養良好的學習方法很重要。

　　These statistics are important from an ecological point of view.

　　就生態學而言，這些統計數字很重要。