Meanwhile, Krivoy discovered that the gold coin was very rare.
同时,克里沃伊发现,这枚金币非常罕见。
She gave him a gold coin.
她给了他一个金币。
In the evening, when the father asked his son what he had earned, the son showed him the gold coin.
晚上,父亲问儿子挣了多少钱,儿子把那枚金币拿给他看。