Polyalkane
聚链烷
🗣️ 情景例句
Haven't we met before?
我们没见过吗？
She's an English-woman.
她是英国女人。
Our foreign trade policy has always been based on equality and mutual benefit and exchange of needed goods.
我们的对外贸易政策一向是以平等互利、互通有无为基础的。