難事的用法和樣例：
例句
-
學騎馬是件難事。
It's uphill work learning to ride. -
一天走20英里，他不以為是難事。
He makes nothing of walking 20 miles in a day. -
空難事件中有些人大難不死被新聞界廣泛報導。
The miraculous survival of some people in the air crash was widely reported by the press. -
學騎自行車是件難事。
It's uphill work learning to ride a bicycle.
