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The interactions between dromions have still not yet been understood very well.In this talk, we will report two new types of dromion interactions, dromion reflection and re connection, for the generalized Broer-Kaup system as a representative example.Dromion reflection is when a dromion behaves like a ball reflected by a wall.Essentially, it is a dromion interacting with an invisible ghost wall caused by a ghost line soliton.While dromion reconnection interaction is the scenario where the bounded dromions may be opened and then reconnected during the interaction.These two novel interaction phe nomena are quite universal in high dimensions.