Text this: Possible solutions to the problems commonly encountered by students at Hanoi University of Technology in pronouncing the English affricative consonants

 __   _     _____     _____    __   __    _____   
| || | ||  |  ___||  / ____||  \ \\/ //  |__  //  
| '--' ||  | ||__   / //---`'   \ ` //     / //   
| .--. ||  | ||__   \ \\___      | ||     / //__  
|_|| |_||  |_____||  \_____||    |_||    /_____|| 
`-`  `-`   `-----`    `----`     `-`'    `-----`