一直往下走，最终你会突然看到那条隐秘的瀑布。As you descend, suddenly you see at last the hidden waterfall.他把最隐秘的想法只告诉最好的朋友.He reveals his innermost feelings only to his best friend.地道的出口开在隐秘的地方.The exit of the tunnel is concealed....
你如何向盲人解释颜色？How would you explain colour to a blind person?令人困惑的是，盲人对亮光也有反应。Confusingly, blind people also respond to the light.他曾教过盲人。He was a teacher of the blind....
I'll give her a platinum ring.我打算送给她一枚白金戒指.Platinum exceeds gold in value.白金的价值高于黄金.Metals commonly mixed with gold are nickel, platinum, and copper.通常与金混合的金属有镍 、 铂和铜....