semi-automatic book sewing machine

例句：

1. 1. This semi-automaticbook sewing machine is very easy to use.
   这台半自动书籍缝纫机使用起来非常简便。
2. 2. The teacher demonstrated howto operate the semi-automatic booksewing machine.
   老师演示了如何操作半自动书籍缝纫机。
3. 3. Thesemi-automatic booksewing machine has become a popularchoice for home sewing projects.
   半自动书籍缝纫机已成为家庭缝纫项目的一个热门选择。