"开学综合征"是指在开学时出现的一系列身体症状，通常包括疲劳、焦虑、压力、失眠、胃痛等。这种综合征通常是由于在开学时面对新的学习任务和生活调整所导致的身心压力引起的。

英文表示为 "back-to-school syndrome" 或 "back-to-school stress."

一些英文例句及其中文翻译如下：

"I always get the back-to-school syndrome every September. I feel anxious and tired." (我每年九月都会有开学综合征，感觉焦虑和疲劳。)

"My daughter has been complaining of stomach pain and difficulty sleeping since school started. I think she might be experiencing back-to-school stress." (我的女儿自从开学后就一直抱怨胃痛和难以入睡。我想她可能正在经历开学综合征。)

"I'm trying to find ways to manage my back-to-school stress. I'm thinking of taking up yoga or meditation." (我正在寻找缓解开学综合征的方法。我想练习瑜伽或冥想。)