shén tàn
master sleuth
lit. miraculous detective
cf Sherlock Holmes 福爾摩斯|福尔摩斯[Fu2 er3 mo2 si1] or Di Renjie 狄仁傑|狄仁杰[Di2 Ren2 jie2]
shēn tán
deep natural pond
deep pit
abyss
shēn tán
to have an in depth conversation
to have intimate talks
to discuss thoroughly