mutton dressed as lamb
US /ˈmʌt.ən drɛst æz læm/
UK /ˈmʌt.ən drɛst æz læm/

1.
老黃瓜刷綠漆, 裝嫩
an older woman who tries to look younger by dressing in clothes designed for younger people
:
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Her outfit was a classic case of mutton dressed as lamb.
她的穿著是典型的老黃瓜刷綠漆。
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She's a lovely woman, but sometimes she looks like mutton dressed as lamb.
她真是個可愛的女人,但有時候她看起來像老黃瓜刷綠漆。