"It is very difficult to really pin down and there have been these sorts of accusations from the Revolutionary Guards in the past."

VOA: standard.2009.10.18

A kind of a pin used to hold your cloak together, called a fibula, unknown in the previous period.

一种别住披风的别针,称之为扣针,这在之前的时期从未出现过

耶鲁公开课 - 古希腊历史简介课程节选

Because there, it's not known for dive bars with cheap beers and pin darts and, you know, people getting in a bar fight.

因为那里不是因有便宜的啤酒和针头飞镖的廉价酒吧和酒吧打架闹事而闻名。

如果想去俱乐部 - SpeakingMax英语口语达人

You take a pin and you stick it through my flesh of my body and I feel pain in my soul, in my mind.

你拿一根针扎我身体上的肉,我的灵魂,我的心灵就会意识到疼痛

耶鲁公开课 - 死亡课程节选

The interesting thing about Descartes' argument is that it's easy to see something has gone wrong in the case of the Morning Star and the Evening Star, but it's difficult to pin down what exactly went wrong.

笛卡尔论证的奇妙之处在于,我们能明显感觉到,晨星和昏星的例子中,有些东西不对劲,但很难确定,错误到底在出哪里

耶鲁公开课 - 死亡课程节选