heel [hi:l] noun 1. [of foot] talón m to dig one's heels in plantarse, mantenerse en sus trece to follow hard on the heels (of) ir inmediatamente a continuación (de) to take to one's heels poner pies en polvorosa to turn on one's heel dar media vuelta 2. [of shoe] tacón m, taco m (Amér)
Complétez la séquence avec la proposition qui convient. … aren't dangerous and need to be protected. Wolfs Wolves Wolf