zing

大方而有活力的样子（名词，非正式用语）

(noun, INFORMAL) An attractive condition of energetic style and relaxed sophistication

EXAMPLE: My shy little brother got some zing when he bought a new suit, started wearing stylish shoes, and learned to dance salsa.

我的弟弟性格腼腆，但当他买了新西服、开始穿赶时髦的鞋、学跳萨尔萨舞之后，就变得大方和有活力一些了。

a working knowledge of something

在某方面掌握了够用的知识

An understanding of something that is adequate for practical application

EXAMPLE: Although I studied only French and German in school, I lived in Libya for three years and acquired a working knowledge of Arabic.

虽然我在学校里只学了英语和德语，但我在利比亚生活过三年，因而会使用阿拉伯语。