not up to the markBritish EnglishBrE a) GOOD ENOUGHnot good enough 不够好;不符合标准[要求] Her work just isn’t up to the mark. 她的工作根本不达标。
b) old-fashionedMI not well and healthy 身体不适 I’m not feeling quite up to the mark today. 我今天感到不太舒服。
→ not up to the mark at mark2(12)