He gave a chortle.

他哈哈大笑起来。

Father used to chortle over the funny funny papers every Sunday.

父亲以前每个星期天看到滑稽报纸，总要哈哈大笑。

Or anyway, keep it to a low chortle, because it seems like 3D on the Web is actually starting to become a thing.

因为现在3D网页似乎正在开始变成现实。