"Strike while the iron is hot,"
"打铁趁热"
is a saying that means when iron is red-hot, it is more easily bent and molded than when it’s cold.
这句谚语是说铁在炽热时比其冷却时较易弯曲及铸造。
It should, therefore, be struck before it cools down.
因此，打铁应趁热。
Likewise, we should act at the right moment,
同样地，我们应在适当的时刻就采取行动，
or else well miss the opportunity and end up achieving nothing at all.
否则会坐失良机而最终一事无成。