reliable前面加a。
reliable
美 [rɪˈlaɪəb(ə)l] 英 [rɪ'laɪəb(ə)l]
adj.可信赖的；可依靠的；真实可信的；可靠的
网络:可靠性；确实的；值得信赖
例句:But there will also be a need for a reliable power generation that works even when the sun does not shine and the wind does not blow.
不过，人类还是需要一种可靠的发电方式：即便没有阳光、风不流动，也能为我们提供电力。
