英语发音：/t/+/j/; /d/+/j/; /s/+/j/怎么读,比如说：treat+you; guide+you;

in colloquial speech,those pairs will change to another sounds as below:
/t/ + /j/ will change to the sound like "ch",eg."treat you" is pronounced as "treachou".
/d/ + /j/ will chnage to the sound as if the first sound in "jog" or "jet" (i can't type the phonetic symbol here",you can look it up in your dictionary).
/s/ + /j/ will change to the sound like "sh",eg."miss you" is read as "misshiu".
sound change is funny in the field of phonology,if you have any other questions,feel free to ask here,i'll try to help you.