Tegar necessity----The television sel has by law been placed in the class of goods which are necessary to life. What a legal necessity is is explained in the following phrase attain succeed In getting something especially after some effort e.g. He attained his objectives/hopes after much hard work A man of attainments is one who has accomplished/achieved a great deal Ts.:我们的老师不到四十岁就取得了正教授的 任积资格 Our teacher attained full professorship before he was forty.2. the television set has attained the rank of a legal necessity----The television set has by law been placed in the class of goods which are necessary to life. What a legal necessity is is explained in the following phrase. attain -- succeed in getting something, especially after some effort. e.g.:He attained his objectives/hopes after much hard work. A man of attainments is one who has accomplished/achieved a great deal. Trs.:我们的老师不到四十岁就取得了正教授的 任职资格。 Our teacher attained full professorship before he was forty