Zwitterionic compound
[化] 两性离子化合物
🧩 词语组成解析
a. [化]两性离子的
🗣️ 情景例句
I'm taking 19 credit hours.
我修了十九个学分。
Make your enemy your friend.
要化敌为友。
But people who are cut off not only from foreign tourists, but even from their own countrymen can be hostile to travellers.
但是，那些不但与外国旅游者隔绝，而且与本国同胞隔绝的人们有可能对游客抱有敌意。