1 a. to make something bigger or looser by pulling it, or to become bigger or looser as a result of being pulled b. if a material stretches, it can become bigger or longer when you pull it and then return to its original shape when you stop 可伸展,可延伸,有弹性 I,T I not in progressive
不用进行式
MAKE STH BIGGER/LOOSER
使某物更大/更松