1530s, from Latin assiduus "attending; continually present, incessant; busy; constant," from assidere "to sit down to" (thus "be constantly occupied" at one's work); from ad "to" (see ad-) + sedere "to sit" (see sedentary). The word acquired a taint of "servility" in 18c. Related: Assiduously; assiduousness.
实用例句
1. Podulski had been assiduous in learning his adopted language.
波多斯基一直很努力地学习外语。
来自柯林斯例句
2. The book was the result of ten years'assiduous research.
那本书是十年苦心钻研的成果.
来自《简明英汉词典》
3. His spirit of assiduous study is worthy of emulation.
