子供もそう、大人もそう。欧米人から習っている時に先生の口の動きを見ないと失敗する場合が多い。見れば、言える!上手に言える!欧米人先生目閉じたら貴方は欧米人に聞こえるケースが多い。マジで。こんなシンプルなことを忘れないで!If you forget too many times, I'll power bomb you. That will wake you up.パワーボムされたら目が覚めるでしょう!
Seriously, try and watch the way your teacher moves his mouth, lips, and tongue to say the words. Once you understand how he・she says it, you can say it. When you can say it, you can hear it. If you can hear it, you will understand it. Easy!