Polyampholyte
聚两性电解质
🗣️ 情景例句
There's your teddy bear, Max.
这是你的玩具熊， Max。
He realized that he was heading in the wrong direction.
他意识到走错了方向。
No problem! Tell me, do I have to take them before or after meals?
“那不难！告诉我，我是在饭前还是饭后吃呢？”