It is natural not to care about a sister certainly not when she is four years older and grinds her teeth at night.

It is natural not to care about a sister certainly not when she is four years older and grinds her teeth at night.

当一个姐姐比你大四岁，晚上磨牙的时候，你自然不会去关心她。

-- Gertrude Stein 格特鲁德·斯坦