Concepts
n. 概念, 观念；思想（concept复数形式）
🗣️ 情景例句
I did both with Richard and Susan,
有Richard和Susan时我这样做，
What color is your book?
你的书是什么颜色？
Each day is a holiday,and ordinary holidays, when they come,
每天都是假日，而通常的假期到来时，