Copolyimide
共聚多酰胺
🗣️ 情景例句
That's six steaks.
六份牛排。
When do you want to leave?
你想什么时候离开？
Over the years, one may well become a authority on one's hobby and will very probably be asked to give informal talks to little gatherings and then,
一人积了多年经验会成为自己这种爱好的权威，很可能应邀在小型集会上作非正式的讲话。