“演变的”造句

要确定事态演变的明确结果,并不容易.
It is not easy to establish the exact sequence of events.

他论证说,生物是由于一些小的遗传变异的积累而逐渐演变的.
He argued that organisms evolve gradually by accumulating small hereditary changes.

每项发展都是而且将来也是逐渐演变的.
Each development has been, and will be gradual.

• #演变的