有人在支票上伪造了她的签名。

Someone had forged her signature on the cheque.

《牛津词典》

她的签名潦草难辨。

Her signature was an illegible scrawl.

《牛津词典》

youdao

So, the goldsmith would sign his name on it saying, I promise to give so many ounces of gold.

所以这个金匠会在票据上签名,保证归还多少盎司的金子

耶鲁公开课 - 金融市场课程节选

I also issued them a passport, put their picture in it, had them sign their names, check to see how they know their addresses.

我还给他们每人发了一个护照，把他们的照片放在里面，并让他们签名，从而检查他们。

麻省理工公开课 - 媒体、教育、市场课程节选

But, I also read a poem, and this is kind of a signature-- not my signature, but the kind of course it is.

不过我还读了一首诗,算是一种签名,不是我的签名,是这种课程的

耶鲁公开课 - 1871年后的法国课程节选