Tacryl
丙烯纤维
🗣️ 情景例句
Is that one of the things Susan and Harry are bringing?
那是不是属于Susan和Harry要带的？
I asked him to lend me a book , but he wouldn't.
我请他把书借给我，但是他不肯。
She works very hard and is very helpful.
她工作非常努力，对同学们帮助很大。