她因为驾照考试没通过，感到情绪相当低落。

She’s feeling pretty ___low because she failed her driver’s test.

她从不感到情绪低落，和她在一起我兴致很高，因为她很有幽默感。

She never feels ___low and I am in high spirits being with her because she has got a sense of humor.

经过几周的紧张工作，他的情绪跌入真正的低谷，需要休息一下。

After weeks of intense work, he hit a real emotional ___low and needed a break.