Polyketone
聚酮
🗣️ 情景例句
Well, I'm not going to kid you, Susan.
噢 ，我可不想哄骗Susan。
A servant is known by his master's absence.
主人不在可以看出仆人的品行来。
Some of them were as big as marbles.
有的钻石像玻璃球那么大。