大多数硬币是由铜和镍的合金制成的。

Most coins are made of an alloy of copper and nickel .

父亲每天早晨和晚上都要数硬币，自然可以被称位吝啬鬼，这一事实可以从他都快要死了还是把硬币锁起来不传给儿子这一事实看得更清楚。

The father, who counts his coins every morning and evening, can certainly be said to be a miser, the fact of which is made more manifest by his act of locking them away form his son.