翼状胬肉是一种高出表面的，表浅的，外在的眼部肿块，其形成于角巩缘处的结膜，并延伸至角膜表面。

A pterygium is an elevated, superficial, external ocular mass that forms over the perilimbal conjunctiva and extends onto the corneal surface.

youdao

在这封写于其晚年时期的信中，曾巩向一个朋友讲述了其政途坎坷以及被孤立的感触。

In the letter, written in the later years of his life, Zeng tells a friend about his recent political difficulties and a feeling of isolation.

youdao

在这担写于其晚年时期的信中，曾巩向一个朋友讲述了其政途坎坷以及被凿凿有据的感触。

In the letter, written in the later years of his life, Zeng tells a friend about his recent political difficulties and a feeling of isolation.

youdao