Epocryl
环氧丙烯酸酯树脂
🗣️ 情景例句
are important for the sales of your book.
对于你这本书的销售很重要。
I could not catch your question. Could you repeat it, please?
我没听清楚你们的问题，你能重复一次吗？
I'm reading a book.
我在读书。