elasticin弹性硬蛋白elasticadj.灵活的；有弹性的；可变的n.橡皮圈；有松紧的东西elastic supports弹性支承elasticized cuff松紧袖口elastic bleeding弹性释水elastic pendulum弹性摆elastic buckling弹性屈服,弹性挤曲elastic analysis弹性分析elastic corduroy弹力灯芯绒elastic knee cap弹性护膝套elastic fixation弹性固定elastic approach弹性方法

1. The safety helmet is held on by an elastic strap.
   安全帽用一根松紧带系住。
2. The elastic at the waist gives a nice snug fit.
   腰间的松紧带使衣服正好紧紧贴在身上。