Bivalent segmer
[机] 二价链节
🧩 词语组成解析
a. 二价的\\n[化] 二价的
链段
🗣️ 情景例句
Have a safe trip home.
路上小心点。
What is the economy like in this country?
这个国家的经济如何？
They spent a full and very enjoyable morning together, and Fred discovered that he had a gift for making a visit interesting and lively.
他们一起度过了一个充实而又非常愉快的早上，弗雷德发现自己具有导游的才能，能使参观活动变得趣味盎然。