It was the first time in his life that he'd slept out of doors.
那是他有生以来第一次露宿。
In the daily use of rolling shutter door, we must carry out regular cleaning and maintenance, in order to effectively extend the service life of shutter doors, to ensure good performance.
在卷帘门的日常使用中，一定要对其进行定期的清洁和保养，才能有效延长卷帘门的使用寿命，保证性能的良好。
Must be out-of-doors enough to get experience of wholesome reality, as ballast to thought and sentiment. Health requires this relaxation, the aimless life.
必须经常到户外体验有益的现实，于思想和情感这犹如压舱石，健康需要这种放松，这种闲适的生活。（我想这句话对于越发烦闷的大学生，很有启迪作用）
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