Polychlorparaffin
多氯化石蜡
🗣️ 情景例句
to meet the rest of the troop at two o'clock at the museum.
我们得在两点钟到博物馆与其他童子军会合。
Do you have any brothers?
你有兄弟吗？
I really can't agree with you. I prefer science.
我真的不能同意你的看法。我更喜欢自然科学。