@greg_travis It's also not a "divide", it is a fairly constant rate of increase across ages.
@格雷格·特拉维斯：这也不是一个“鸿沟”，而是一个相当稳定的年龄增长率。
@greg_travis It's also not a "divide", it is a fairly constant rate of increase across ages.
@格雷格·特拉维斯：这也不是一个“鸿沟”，而是一个相当稳定的年龄增长率。