Polychlorodifluoroethylene

聚二氟氯乙烯; 聚二氟氯乙烯

??? 情景例句

What was the weather like yesterday?
昨天的天氣怎么樣?
Have you ever thought about a career in the medical profession?
你曾經在醫藥專業考慮職業嗎?
How old are you?
您多大歲數了?
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?? 更多 P 開頭的單詞

pitfall 'pitf?:l
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