mould assembling and closing

例句：

1. 1. The chef uses a mould to shape the dough into different shapes.
   厨师使用一个模具来将面团塑形成不同的形状。
2. 2. The molds are used to make chocolates and other sweets.
   模具用于制作巧克力和其他糖果。
3. 3. The molds were made of wood and could be used over and over again.
   模具由木头制成，可以反复使用。