by trial and error是什麽意思

中文意思：通過試驗和錯誤

例句

1、They went by trial and error.

他們的上升試驗和錯誤。

2、You have to learn by trial and error.

妳得從失敗中獲取經驗。

error

[英][?er?(r)][美][r?]

n.錯誤，過失; [法]誤審，違法; [數]誤差;

復數：errors