middle-aged

详细解释:a. 中年的

英语解释：

形容词 middle-aged:

being roughly between 45 and 65 years old

详细解释：

mid.dle-aged

adj.（形容词）
Of or relating to middle age:
中年的：中年的或与中年有关的：
例句：
middle-aged parents; middle-aged interests.
中年父母；中年人的兴趣