noun🔗Share来回，反复，往返。 The movement (of someone or something) forward followed by a return to the same position. May refer to a concept such as an emotional state or a relationship as well as a physical thing."The constant to and fros of the students between classes filled the hallways with noise. "学生们在教室之间不停地来来回回，让走廊里充满了喧闹声。actionwayplacedirectionChat with AIVocabulary GamePractice Reading
