充满艰辛的时期英文可以翻译为 "a difficult period" 或 "a trying time". 这两个短语都表示一段时间内遇到困难或挑战的情况。例句如下：
The company went through a difficult period when the economy was struggpng, but they managed to weather the storm.
It was a trying time for the family, but they remained strong and supportive of each other.
这两个短语的来源可能源自于人们在经历困难时的感受，即这段时间是艰难的。这些短语也被广泛使用，因为它们能够清楚地表达人们对于某段时间的艰难的感受。