Dimerism
二聚性
🗣️ 情景例句
Advice doesn't normally come cheap, but this piece is for free...
通常来说，忠告都是价值不菲的，但这个是免费赠送的。。。
I learned history last month.
我上个月学历史。
'I was just wondering how to spend the morning -- until I saw you.
“我正不知道怎么消磨这一上午呢，正好见到好。