| 释义 |
biological variability
基本例句
生物差异
They have speculated about why human populations have different physical appearances and about whether the biological differences between groups are more than skin deep.对于人群间体表差异的起源，早就有许多猜测，至于人群间的生物差异究竟只限于肤浅处，还是深刻得多，更是议论纷纷。 |