Polycondensate
缩聚物
🗣️ 情景例句
You're a terrific photographer.
你是一名出色的摄影师。
Never think yourself above your business.
切莫自视过高。
Mr Hu stood at the starting line. All the runners got ready to run.
胡先生站在起跑线上。所有的运动员都做好了起跑准备。