How long has she been penned up in the house by her illness?
她因患病困在家里多久了?
His anger had been penned up for too long.
他压抑自己的愤怒太久了。
英汉双解词典包含483723条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。