selfsame
adj. 完全相同的；同一的
例句
Jane had been wondering that selfsame thing.
简也一直在为同一件事纳闷。
《牛津词典》
They were both born on that selfsame day.
他们俩都是那一天出生的。
He won two gold MEDALS on the selfsame day.
他在同一天获得两块金牌。
