found out first hand
找到了第一手资料
以上为机器翻译结果，长、整句建议使用 人工翻译 。
I found out my grades on the Internet at first hand.
我从网络上直接得知我的成绩。
youdao
Staff Sergeant Richard Green, an 82nd Airborne Division mechanic, found this out first-hand when he accidentally damaged his unit's first M-ATV.
VOA: standard.2010.08.01
应用推荐
模块上移
模块下移
不移动