第一，情景对话

A: Tom is worried about his examination.

汤姆正在担心他的考试。

B: Why? Doesn't he do well in school?

为什么？他学习不好吗？

A: He played truant several times to play video games this term. He is sure to go under in the final examination.

这个学期他逃了好几次学去玩儿游戏。他这次期末考试肯定会失败。

B: He deserved it. But I hear failing the exam means he'll not graduate.

他活该。但我听说考试不及格他就毕不了业。

A: Well, we have to help him.

嗯，我们还得帮帮他。

第二，词海拾贝

go under

释义：To fail or become defunct.（失败，作废）

例句：Our company will go under if we lose money again this quarter.

如果我们这个季度再亏损的话，我们公司就要破产了。

Smaller radios and newspapers went under.

规模小一点的电台和报社垮了。

The company went under exactly one year after it opened.

这家公司开业正好一年后就倒闭了。

We tried to keep it from going under.

我们尽力不让它倒闭。