三宝太监

Sanbao Eunuch, official title of Zheng He 鄭和|郑和[Zheng4 He2] / also written 三保太監|三保太监

three / 3

the Three Precious Treasures of Buddhism, namely: the Buddha 佛, the Dharma 法 (his teaching), and the Sangha 僧 (his monastic order)

variant of 寶|宝[bao3]

jewel / gem / treasure / precious

highest / greatest / too (much) / very / extremely

court eunuch / palace eunuch

to supervise / to inspect / jail / prison

supervisor