the process of experimenting with various methods of doing something until one finds the most successful
反复试验，试错法
In the process of being tried, as in a court of law.
在试用中、试验性地、在受审中，如在法庭上进行的
A test of one's abilities, especially the ability to perform well under pressure.
考验：测试某人的能力，尤指在压力下正常行动的能力