Retrospectives
n. 回顧的( retrospective的復數形式 ); （指法律、支付關系等）有追溯效力的
??? 情景例句
You're very generous.
你真慷慨。
I am very fortunate to have met you.
我很高興能見到你。
Do you usually buy in large quantities?
你們的訂購量通常都很大嗎？