CatchUp English: Expression (Elementary Unit: Jobs and Places) 追趕英文：表達篇 (初級單元：工作和地方)

CatchUp English: Conversation (Intermediate Unit: Hobbies and Interests) 追趕英文：談話篇 (中級單元：嗜好和興趣)

CatchUp English: Conversation (Elementary Unit: Family) 追趕英文：談話篇 (初級單元：家庭)

CatchUp English: Conversation (Intermediate Unit: Weekend Plans) 追趕英文：談話篇 (中級單元：週末計劃)

CatchUp English: Conversation (Intermediate Unit: Travel Experiences) 追趕英文：談話篇 (中級單元：旅行經歷)

How to Speak Business English with Confidence: A Guide to Boosting Business English Proficiency

CatchUp English: Expression (Elementary Unit: Memories) 追いつく英語：言い回し (エレメンタリーユニット：思い出)

English for a living all by Myself 1 用英文謀生自學不求人 1

Speak English Naturally: Creative Ways to Practice English

CatchUp English: Conversation (Elementary Unit: Sightseeing) 追趕英文：談話篇 (初級單元：觀光)

Everyday English Excellence: Phrases, Idioms, and Vocabulary for Life

CatchUp English: Conversation (Elementary Unit: Visitor) 追趕英文：談話篇 (初級單元：訪客)

CatchUp English: Expression (Elementary Unit: Jobs and Places) 追いつく英語：言い回し (エレメンタリーユニット：仕事と場所)

CatchUp English: Expression (Elementary Unit: Emotions) 追いつく英語：言い回し (エレメンタリーユニット：感情)