about eighty years of age的用法和样例：
- He was over eighty years of age,infirm and totally blind.
- He is over eighty years of age, but has all his buttons on.
- He was over eighty years of age, infirm and totally blind.
他八十多岁了, 身体虚弱, 双目失明。
- And Barzillai was very old, eighty years of age; and he had provided the king with food while he remained in Mahanaim, for he was a very great man.