未改变的

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

这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。

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

达尔文认为物种变是缓的，但不是以同样的速度变--如海豆芽样的生物从最早的石以来未发生改变。