This error says that there's a problem in line 12, but the line only has a fi completing the if statement.

错误消息指出问题出现在第12行上，但是这一行只有一个用来结束if语句的fi。

youdao

youdao

There was a column directly in my line of sight, so I could only see half the stage.

有一根柱子正挡着我的视线，所以我只能看见舞台的一半。

《牛津词典》

She appeared in only one movie. And she had only one line to speak in that.

VOA: special.2009.12.06

It's this extraordinary insight that he gives us: we can only read one word at a time, we can only read one line at a time.

这是他告诉我们的非凡的洞察：,我们一次只能读一个词，或是一行。

耶鲁公开课 - 弥尔顿课程节选

Somewhere along the line in one damn incarnation or another, if you like, you not only had a hankering to be an actor or an actress, but to be a good one. You're stuck with it now.

在线路的某个地方，在化身或其他东西里，如果你想要，你不仅能渴望成为一个演员,也能成为一个出色的演员，你想现在是被困住了。

耶鲁公开课 - 1945年后的美国小说课程节选

On far too many occasions they broke the gain line only to find there was no support.

BBC: Jeremy Guscott column

Since late 2011, CPI has embarked on a volatile path, bouncing off the flat line only to fall below it twice.

FORBES: Deflationary PPI Questions Effectiveness Of Bernanke's QE

The entrepreneurs delivered a full spring line only in 2003.

FORBES: Magazine Article