短語(yǔ)詞組短語(yǔ)on the threshold of life 在人生起步堦段On the Threshold of Space 太空飛虎將On the Threshold of Eternity 唱片名On the threshold of spring 春天的門(mén)檻On the threshold of wisdom 智慧在這裡開(kāi)始 返回 on the threshold of