發送短信

數:

提供者:

CAPTCHA:

  ______     ___     _____       ___              
 /_____//   / _ \\  |  __ \\    / _ \\    ____    
 `____ `   / //\ \\ | |  \ ||  | / \ ||  |    \\  
 /___//   |  ___  ||| |__/ ||  | \_/ ||  | [] ||  
 `__ `    |_||  |_|||_____//    \___//   |  __//  
 /_//     `-`   `-`  -----`     `---`    |_|`-`   
 `-`                                     `-`

Please enter what you see:

發送短信 : Teaching vocabulary in mechanical engineering to the second year students at Bacninh Vocational College: challenges and suggestions for solutions