know what you are doing
› to have the skills and knowledge to do something effectively:
You don't need to tell me - I know what I'm doing!
(Definição de "know what you are doing" do Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
(Definição de "know what you are doing" do Cambridge Academic Content Dictionary © Cambridge University Press)
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Palavra do Dia
likeable
A likeable person is pleasant and easy to like.