first hand (also firsthand)

• 1. 

  ADJ First hand information or experience is gained or learned directly, rather than from other people or from books. 直接的; 第一手的 [ADJ n]

  例：

  School trips give children firsthand experience not available in the classroom.

  学校组织的旅行可以给孩子们提供教室里学不到的亲身体验。

• 2. 

  ADV First-hand is also an adverb. 直接地; 第一手地 [ADV after v]

  例：

  We've been through Germany and seen first-hand what's happening there.

  我们曾走遍德国，亲眼目睹了那里发生的事。

• 3. 

  at first hand →see first