第2个回答 推荐于2016-12-01
It's not possible to express it in Hanyu Pinyin.
You mean the pleaSURE part and the exploSION part? It's different from the word three.
The "S" in these words are somewhat pronounced as what is in between the S sound and the Z sound.
For the word "three", the TH sound will be made when you stick your tongue in between your teeth and then try to breathe out through your mouth (or spray some saliva for that matter ;p). The rest of the word, just pronounce as usual. (:本回答被提问者采纳