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。
2
Why It's Unique: "This was the first tunnel goingunder a body of water, and it was the first time the shield tunnelingconcept was used, " Hashash tells PM.
独特之处：“ 这是第一条置于水中的隧道，也是第一次采用盾构隧道的概念，”哈沙什告诉大众机械的编辑。
3
When the body is in stress, we have various unusual stimulations of the visual sections of the brain, and perhaps that explains the white light or the feeling of compression in the tunnel.