beside oneself 不是就在身边

【例句】He was beside himself when his wife gave birth to their first child. 【误解】妻子生下第一个孩子时，他就在身边。 【正确】妻子生下第一个孩子时，他欣喜若狂。 【说明】beside oneself意思是“(由于气愤或激动等而)失去控制”、“得意忘形”。