drumble

So take pat action, neither impatience nor drumble.

意谓做事要适时而动，不急躁也不迟缓。

Not taking action while opportunity being mature is called drumble that would cause delay in work. So higher-up must hate you.

时机已成而不去干，叫做迟缓，迟缓就办不成事情，主上必然怨恨。