cloak-and-dagger activities are secret and mysterious, sometimes in a way that people think is unnecessary or silly 秘密的,神秘兮兮的(有時被認爲不必要或荒謬) Why can’t we be open about it? Do we really need all this cloak-and-dagger stuff? 爲什麽我們不能開誠布公呢?我們真的需要這些秘密的東西嗎?