过去式:undergowent 过去式:underwent 过去分词:undergone 第三人称单数:undergoes 现在分词:undergoing
1.经受(检阅,考验等);经验,经历(变迁等);遭受(苦难等)
1.to experience something, especially something that is unpleasant but necessary
2.to experience a process of change