如果你用力拉那个拉链，它可能会坏掉。

If you ___force the zipper, it might break.

消防员不得不强行撬开那扇生锈的门。

The firefighters had to ___force the rusted door open.

窃贼试图从外面撬开那扇锁着的窗户。

The burglar attempted to ___force the locked window from the outside.