Polythioester
[化] 聚硫酯
🗣️ 情景例句
Philip and I were living with Grandma and Grandpa. Philip
与我和爷爷， 奶奶住在一起。
The editor checks all of the current news.
编辑在检查所有的时事消息。
Both girls write to each other regularly now.
现在这两位姑娘定期通信了。