witness？

His girlfriend had gone into the witness box and taken the oath.

他的`女朋友進入證人席并立了誓。

2、The plaintiff's sole witness, a gambler and layabout, was easily discredited.

原告唯一的證人嗜賭成性，游手好閑，其證詞一下子就被推翻了。

3、The convictions rest solely on disputed witness and confessional statements.

僅僅根據有爭議的目擊者證言和供詞就定了罪。