VERB
說明，表示，證明（某事屬實(shí)）
To attest something or attest to something means to say, show, or prove that it is true.
例句
Police records attest to his long history of violence...
警方記錄證明他有長(zhǎng)期從事暴力活動(dòng)的前科。
I can personally attest that the cold and flu season is here...
感冒和流感季節(jié)來了，對(duì)此我有切身體會(huì)。