没来由 meaning in English

without any cause; for no reason; without rhyme or reason

Then , is there any existence in this world without any cause or reason
那么，世界上有什么没来由的存在吗？
Meanwhile , grace ' s excitement to be the opening speaker at an event for her mentor turns to disappointment when she is asked not to speak due to her scandalous relationship with tom
波比积极秘密习训考入田径队伍，积奇没来由大加反对，是失意于感情发?在弟弟身上，还是妒忌于自己参加不了？