mirage|mirages
沙漠中的绿洲只是一个海市蜃楼，走近就消失了。
The oasis in the desert was just a ___mirage, disappearing as we got closer.
沙漠中的绿洲幻象常常让旅人空欢喜一场。
The ___mirages of oases in the desert often give false hope to travelers.
在炎热的沙漠中，远处出现的海市蜃楼让他们误以为找到了水源。
The ___mirage in the hot desert tricked them into thinking they found water.