written english 英文文笔
spoken english 英文口语
improvement 改善
例：I don't see any improvement in your work, the boss said.
老板说：“我看不出你的工作有任何改善。
discouraged 泄气的，沮丧的
例：Jim was discouraged by his exam result.
吉姆对他的考试成绩感到很沮丧。
practice make perfect 孰能生巧（谚语）
show off 炫耀
例：I think people who show off are silly.
我认为爱炫耀 的人是很愚蠢的。
