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For example: Crataegi folium cum flore, flowers and leaves of hawthorn2. Mathematical period: For a function f (x), if there is a non-zero constant T, so that when x takes every value in the domain, there is f (x + T) = f (x), then the function f (x) is called a periodic function. The nonzero constant T is called the period of this function.Public void workAll ();鬼马的洛菲菲与性格各异的十二个星主频频互动中乌龙笑料百出，与皇上更成了欢喜冤家，初生牛犊的她不惧挑战，豪言壮志：这个皇上我要了。此番赵敏失踪，就是被周芷若擒住，周芷若问他的这些话，就是问给赵敏听的。Miran为自己的父母寻求报复，精心计划多年想要求取导致父母之死罪魁祸首家的女儿Reyyan。他想要引诱Reyyan走入自己步下的陷阱来摧毁她，从而达到报复的目的。不曾想，在这个过程中。他发现自己不知不觉地爱上了她，这会对他的复仇计划产生怎样地影响……The function of the intermediary mode is to remove the coupling relationship between objects. After adding an intermediary object, all related objects communicate through the intermediary object instead of referencing each other. Therefore, when an object sends a change, only the intermediary object needs to be notified. Intermediaries loosely couple objects and can independently change their interaction.