tried and true
US /ˈtraɪd ənd truː/
UK /ˈtraɪd ənd truː/
成語
行之有效, 久經考驗
proven to be effective or reliable
範例:
•
This is a tried and true method for baking perfect cookies.
這是烘焙完美餅乾的行之有效的方法。
•
His advice is always tried and true.
他的建議總是行之有效的。