middle-aged
(a.)中年的
middle-aged /ˌmɪdḷˈeʤd/ 形容詞
中年的
Mid·dle-aged a. Being about the middle of the ordinary age of man; early in the century, it was considered between 30 and 50 years old, but by the end of the 19th centruy it was considered as 40 to 60.
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middle-aged
adj : being roughly between 45 and 65 years old