Elasticities
(elasticity 的復數) n. 彈力, 彈性\\n[化] 彈性
??? 情景例句
Glad to see you too, we met two years ago.
我也很高興，我們兩年前見過一次。
If the sky fll (or falls), we shall catch larks.
異想天開
We're eleven.
十一歲。