“严重的”用英语怎么说

我们正在经历现代最严重的一段经济衰退。We are in one of the most severe recessions in modern times.她患上严重的心脏病后安装了心脏起搏器。She was fitted with a pacemaker after suffering serious heart trouble.他们因吃错东西而得了很严重的感染症。They've picked up a really na...

“严重的”的拼音为：...