Part One Words, Phrases and Sentences in full swing 如火如荼地进行；热火朝天 e.g...

Part One Words, Phrases and Sentences come to the fore 涌现；崭露头角 e.g....

Part One What I Have Learned From Chapter I&II I delivered a presentat...

Part One Words, Phrases and Sentences baffle (vt.) hinder or prevent ...

Part One Words, Phrases and Sentences obscure (adj.) not clearly under...