时好时坏 用英语怎么说？

时好时坏的生意 : feast-or-famine business
因而，病人心绞痛症状时好时坏。
Consequently, stand or fall of patient angina symptom.
这个月的天气时好时坏，变化无常。
The weather has varied from beautiful to terrible this month.
他两年的约会过程时好时坏。
During his two-year efforts, his dating seems to be hit-or-miss.

要看你要表达的内容。

Sometimes good,but sometimes bad.

你可以说Just so so 了

直接sometimes good sometimes bad.就行

sometimes good while sometimes bad