firsthand

第一手的、亲身的、直接的

She has firsthand knowledge of how the factory actually operates.

她对这间工厂实际的运作方式有第一手的了解。

亲眼目睹的、亲身经历的

His book is a firsthand account of life after the earthquake.

他的书是震灾后生活的亲身见闻。

亲自、亲身、直接

I learned firsthand how difficult it is to raise three children.

我亲身体会到养三个小孩有多辛苦。

直接地

We heard the news firsthand from someone at the meeting.

这个消息是我们从与会的人那里直接听来的。