VERB
				说明,表示,证明(某事属实)
				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...
						警方记录证明他有长期从事暴力活动的前科。
						I can personally attest that the cold and flu season is here...
						感冒和流感季节来了,对此我有切身体会。