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(有时被认为不必要或荒谬) Why can’t we be open about it? Do we really need all this cloak-and-dagger stuff? 为什么我们不能开诚布公呢?我们真的需要这些秘密的东西吗?