elastic
n. 松紧带,橡皮筋 a. 有弹性的,能伸缩的,可通融的
常用短语
elastic band 像皮圈
elastic bandage 弹性绷带
elastic energy 弹性能量
elastic modulus 弹性计量单位，弹性模数
elastic potential energy 弹性势能
elastic tissue 弹力组织，弹性组织，黄弹性组织
gum elastic 橡胶，弹性树胶
参考例句
There was a loud ping as the elastic broke.橡皮带断裂时发出砰的一声巨响.
This workpiece is not more elastic than that one.这个工作比不上那个工作更有弹性。
The elastic band has perished.这橡皮筋已经老化。
Don't worry about him; he is a cheerful and elastic man.别为他担心;他是个快活开朗的人。
elder
n. 年长者,老人,前辈 a. 年长的,资深的
常用短语
elder statesman n. (仍有影响力的)政界元老
参考例句
The old king was notorious for his cruelty.老国王因他的残酷行为而声名狼籍。
The oldest children are in the sixth form.年龄最大的学生在六年级。
He was bashed up in the playground by some older boys.有几个年龄较大的男孩子在操场上对他动武.
We have an old musical instrument.我们有一件老式的乐器
The old ferry is scarcely seaworthy.这艘船已几乎不适于航海了。
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