I pulled the hatpin out and held my handkerchief over the bleeding.

我把帽针拔了出来，用手帕捂住流血的伤口。

She came out with a long hatpin.

可她拿出了一枚长的帽针。

Before I could stop her she had run this long hatpin through her nose, sideways, just above the nostrils.

我没来得及阻止她，她已经把这枚长帽针穿进了自己的鼻子，斜着，就在鼻孔上面。