英语阅读有一句看不懂 求帮助
Japanese firms are showing admirable solidarity. When car firms realised that eight factories belonging to Renasas, a crucial supplier of the microcontrollers that run a vehicle’s electronics, had been damaged, they sent 2,500 of their own staff to help it restart. More than 1,000 aftershocks have slowed the recovery. Power is in short supply, albeit recovering. The strong yen hurts exports. Plans for Japan to join regional free-trade talks have sputtered.
中的[The strong yen hurts exports]是什么意思,求牛人指教