The material of this lesson was unusual, nice practice on written letters and notice announcement.
There are new words I learned today :
key concepts 基本概念、關鍵概念
The key concepts of learning language well is don’t be afraid to make mistakes.
investigate (v.) 調查、研究 = inquiry (n.)
Once you be a manager, investigate problem and solved them are your responsibility.
conduct (v.) 進行
accusation (n.) 指控
weld (vt.) 焊接
fusing (v.) 熔化、熔合 (v.)
hammering (v. / n.) 鍛造
instruction (n.) 指令
tough (adj,) 堅韌的