Definition: knowledge about something that is good enough to be useful Level: B2
她掌握德语和俄语的实用知识。
She has ___a ___working ___knowledge ___of German and Russian.
我掌握英语和西班牙语的实用知识。
I have ___a ___working ___knowledge ___of English and Spanish.
这份工作需要你掌握统计学的实用知识。
You need ___a ___working ___knowledge ___of statistics for this job.
