1. 实验
    An experiment is a scientific test which is done in order to discover what happens to something in particular conditions.

    e.g. The astronauts are conducting a series of experiments to learn more about how the body adapts to weightlessness...
           那些宇航员正在进行一系列实验，以更多地了解身体如何适应失重状态。
    e.g. ...a proposed new law on animal experiments...
           有关动物实验的最新法规提案

2. （用…）做实验
    If you experiment with something or experiment on it, you do a scientific test on it in order to discover what happens to it in particular conditions.

    e.g. In 1857 Mendel started experimenting with peas in his monastery garden...
           1857年，孟德尔开始在修道院的菜园里用豌豆做实验。
    e.g. The scientists have experimented on the tiny neck arteries of rats...
           科学家们已经在老鼠细小的颈动脉上做了实验。

3. 试验;试用
    An experiment is the trying out of a new idea or method in order to see what it is like and what effects it has.

experiment什么意思

    e.g. As an experiment, we bought Ted a watch.
           我们试着给特德买了一块手表。
    e.g. ...the country's five year experiment in democracy...
           该国5年来对民主的尝试

4. 进行试验;试用
    To experiment means to try out a new idea or method to see what it is like and what effects it has.

    e.g. ...if you like cooking and have the time to experiment...
           如果你喜欢烹饪而且有时间尝试的话
    e.g. He believes that students should be encouraged to experiment with bold ideas.
           他认为应该鼓励学生们将大胆的观念付诸试验。