Polydiolefin
聚二烯烃
🗣️ 情景例句
She'll be back around 2:30.
大概两点半会回来。
Better pills may have wholesome effects.
良药苦口。
Winter was coming on and the hills threatened the surrounding villages with destruction, for heavy rain would not only wash away the soil but would cause serious floods as well.
冬季即将来临，这些山丘对周围的村庄具有毁灭性的威胁，因为大雨不仅会冲走土壤，而且还会引起严重的水灾。