its just people link the words together, thats why not everyone can understand certain people who always link their words cuz it makes others to think of another word which ends up not making sense and miscommunication. but simple as thank you, it links the k into the you so it sounds like "bridge" in chinese. another example, "can i" turns into "cani" cuz as americans, we are lazy and we link words together if possible. thats why american english is also known as trash english (to my parents atleast lol, they always bash on it and im like well... instead of moving here why didnt we go to england then if you want me to speak "real english").