The pass mark is 50%.

50%为及格成绩。

《牛津词典》

The woman, identified only by her family name Cha, has repeatedly scored between 30 and 50 marks, below the pass mark of 60 out of 100.

这位被确认姓车的女性，多次在考试中得到30至50的分数，低于满分100的60分及格线。

youdao

He has got a pass mark.

他达到了及格标准。

youdao

The lamb will then be eaten as a family meal, and its blood will be smeared on the doorposts to mark the house so the angel of death knows to pass over that house -handy and the pun works in Hebrew, as well as English, In addition, each family is to eat unleavened bread.

然后这家人把羊吃掉，然后把羊血涂在门柱上，作为标记,所以当死亡天使经过的时候便可以看到,这里有一个在希伯来语和英语中都能讲得通双关语，除此之外，每一家都要吃没有发酵的面包。

耶鲁公开课 - 旧约导论课程节选

He wants to raise the pass mark on the police entrance exam, introduce annual testing and a requirement that all new recruits have three A-levels.

BBC: What do bobbies learn on the beat?

There is such an acute crisis in the recruitment of detectives in England and Wales, the forum adds, that over the past two decades the pass mark of those wanting to join CID departments has been lowered from 80% to 48.6%.

BBC: Shortage in number of detectives

But what happens when every state can decide not only what tests to use but also what pass-mark to employ?

ECONOMIST: The education president (Part 2)