未改变的

These and other health changes are attributed to Splenda remaining unabsorbed in the gut.

这些问题和其他健康状况的改变是由于代糖仍有部分未吸收的遗留在肠道内。

Darwin expected species to change slowly, but not at the same rate – some organisms such as Lingula were unchanged since the earliest fossils.

达尔文认变化是缓的，但不是的速度变化--一些如海豆芽一的生从最早的化石来未发生改变。