Her long fair hair was fastened at the nape of her neck by an elastic band.

她长长的金发用一根橡皮筋扎在了脖子后面。

《柯林斯英汉双解大词典》

Often tofu etc bean products not only can play the increase the luster of the hair, elastic functions, but also can prevent the bifurcate or break.

经常吃豆腐等豆制品不但能起到增加头发的光泽、弹力等作用，还能防止分叉或断裂。

youdao

Healthy hair is highly elastic and can stretch20or30per cent before snapping.

健康的头发非常有弹性，可拉长20%或30%而不断。

youdao