立证是在辩护中引例证明。

To aver is to allege in a pleading.

youdao

她本来是应该把马丁的身份证交给曼迪，结果，她给了盖恩斯一张拍立得的照片，相片的内容是马丁的身份证。

She comes to make the handoff for Mandy, but instead, gives Gaines a Polaroid photo of Belkin’s ID.

youdao

如果学生证丢失请立既通知汉学院办公室。

Please report your case to the office of SCS if you loose the ID.

youdao