by trial and error是什么意思

by trial and error

中文意思：通过试验和错误

例句

1、They went by trial and error.

他们的上升试验和错误。

2、You have to learn by trial and error.

你得从失败中获取经验。

error

[英][?er?(r)][美][r?]

n.错误，过失; [法]误审，违法; [数]误差;

复数：errors