Through thick and thin, they have always been my precious team mates, advisers, and above all, friends.
我们同甘共苦,亲如伙伴,他们是我的军师,更是我的朋友。
the young man has a glorious future before him and the old one has a splendid future behind him:
青年人有光辉灿烂的前景,而老年人的辉煌已成为过去。