请把这几句话翻译成英语
老年大学是老年人发挥余热的好地方。 在你手上我才开始接受正规系统的高等教育，所以我非常珍惜这个机会。 语言是用来交流的，如果你不开口，怎么使用？ 学好英语不是一日之功。
(1)The university for the aged is the right place for the elders to make full use of their lives. (2)It's you who've granted me with a chance to get systemized higher education,which I cherished much. (3)Language is used for communication purpose,thus it would be worthless if you just keep your mouth shut. (4)It takes time to learn English well.
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