公司失去主要客户后，其财务状况开始恶化。

After the company lost its major client, its financial situation started to ___go ___downhill.

整个学期她的学业表现一直在下滑，所以期末考试不及格是意料之中的。

Her academic performance had been ___going ___downhill throughout the semester, so failing the final exam was expected.

如果我们不迅速解决这些问题，我们产品的质量将会下降。

If we don't address these issues promptly, the quality of our products will ___go ___downhill.