n.

1. 实验；试验[C][U][（+on）]
   Some people learn by experiment and others learn by experience.

   一些人通过实验学习，另一些人则从经验中学习。

vi.

1. 进行实验，试验[（+on/with）]
   He is experimenting with drugs to cure hepatitis.

   他正在试验治疗肝炎的药。

   Have they ever experimented on a large number of patients?

   他们可曾在大批病人身上试验过？

n.

1. a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
2. a course of action tentatively adopted without being sure of the outcome.

v.

1. perform a scientific experiment.
2. try out new things.