testify
UK/'testifai/US
TOEFLGRE六级考研B2
释义
v.
To give evidence as a witness, usually under oath in court
（通常在法庭上宣誓）作证，提供证词
v.
To serve as clear proof or evidence of something
证明，表明，是……的明证
词根拆分
词根派生test（作证）+ -ify（使/做）= 字面意为「充当证人」。你站起来宣誓所知，这是法庭义。引申义顺理成章：当成绩 "testify" 出努力时，是证据本身在作证。
词根 test 还连着 11 个词使用指南
- 法庭（中性/法律）：testify under oath、testify in court
- 表明立场：testify against（指证某人）、testify on behalf of / for（为某人作证）
- 引申「是……的证明」：testify TO something——The results testify to her talent。法庭义不用这个介词搭配。
例句
- 1.
She agreed to testify against her former employer in court.
她同意出庭指证她的前雇主。
- 2.
Three witnesses will testify at the trial next week.
下周的审判中将有三名证人出庭作证。
- 3.
The crowded restaurant testifies to the quality of its food.
餐厅里座无虚席，证明了它的菜品出色。