?? 詞語組成解析
n. 薩克拉門托（美國加州首府）
river
['riv?]
n. 河，江;溪，巨流;
??? 情景例句
May I ask where you are from?
我可以請問你是哪里人嗎？
If I buy that car, I'll have to borrow some money.
如果我要買那輛車的話，我必須借一些錢。
Sure! You're welcome!
當然！歡迎你！