橡胶是有弹性的材料.Rubber is a resilient material.这些规定是有弹性的.These regulations are elastic.如果你要买已经片好的鱼片，一定要买鱼肉紧实有弹性的。If you buy the fish ready filleted, make sure the flesh is firm and springy....
He appealed to his countrymen not to lose heart.他呼吁自己的同胞不要丧失信心。I'll never lose heart even if I should fail ten times.即使失败10次,我也不灰心.Don't lose heart, all will turn out well.不要失去勇气, 一切会好起来....