在线急求英语翻译！！！

上面那位明显是机译啊，人家给的词都没用上！！
我是英语专业的，希望能对你有帮助！
1.He works hard, equiping his head with the knowledge, so as to be a scientist in the future.
2.Her interest in the stamp collecting has been declined after she graduated from high school.
3.The grocery store assured the customers of the highest quality goods and services.
4.They have spent a month in the jungle, observing the habitation of bears.
5. Not only should we reduce the industry pollution, but also
make use of the wasted materials.
6.The economy has been developed very fast in the area, however, the quality of some citizens is not be satisfied.

1, he worked hard to study and use the knowledge to arm ourselves and to the future to become a scientist. (Equip with)
2, after graduating from middle school, her interest in stamp collecting has been weakened. (Decline)
3, this department store security to their customers the best quality goods and services. (Assure)
4, in the jungle, they stayed for a month, careful observation bear habitat. (Observe)
5, we must not only reduce industrial emissions, and should make full use of such waste. (Reduce)
6, the region's rapid economic development, but the quality is still not certain members unsatisfactory. (Quality)