laggar
美 ['læɡ?]
英 ['læɡ?] 
英漢解釋
例句
However, the academic research is more laggar than practice of engineering. It is necessary to ameliorate the method of test.
但理論研究遠落后于工程實踐,還需要不斷地改進試驗方法與手段。
Some thoughts about the education and management of the laggar students
后進生教育與管理的幾點思考