adjust the focus of (a lens or one's eyes)
使(透镜)重新聚焦;使(眼睛)重新对准。
focus (attention or resources) on something new or different
改变(注意力的)重点;改变(资源的)使用范围
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refocus attention on yourself through repeating your main points .通过重复你的要点使人们转而注意你。