Op. cit.
abbr. 前面引用的书(in the work already quoted)
🗣️ 情景例句
and remember the meaning of Thanksgiving.
来追忆一下感恩节的意义。
Life is compared to voyage.
人生好比是航海。
I was wondering if you were doing anything this weekend.
我想知道这个周末你有什么要做。