And again, " s" , " h" , and " p" are consonants.

同样，“s”、“h”和“p”是辅音。

Whereas " s" , " h" , and " t" are all consonant sounds.

而“s”、“h”和“t”都是辅音。

That's right. So, he's is spelled h – e – apostrophe – s, and she's is spelled s – h – e – apostrophe – s.

是的。因此，‘他’的拼写是 he’s，而‘她’的拼写是 she’s。