兽医从事兽医医学实践的人 A person who practices veterinary medicine.
这是理论到实践的转变。 It is the translation of theories into practice.
新机器按说能够解决我们生产上的一切问题,然而能否做到这一点还有待于实践的检验。 The new machine is supposed to be the solution to all our production problem, but the proof of the pudding is in the eating.