Racecourses
n. 赛马跑道, 赛马场( racecourse的复数形式 ); （赛马、赛车、赛跑的）跑道
🗣️ 情景例句
Hi, I'm Mary.
嗨，你好，我叫玛丽。
I'm feeling under the weather.
我觉得不舒服。
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，