Lean back, and then throw your head and body forward when you spit, allowing both the air and the water to force your seed forward through the tunnel of your tongue.
吸气时先后倾，吐的时候头和身体再前倾，让气流和口水推动瓜籽经由舌头勇往直前。
Lean back, and then throw your head and body forward when you spit, allowing both the air and the water to force your seed forward through the tunnel of your tongue.
吸气时先后倾，吐的时候头和身体再前倾，让气流和口水推动瓜籽经由舌头勇往直前。
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