3.The frogspawn needs air and would suffocate in the stagnant pool below.
蛙卵需要空气,在不流动的水池里会而.
4.I nearly suffocated when the pipe of my breathing apparatus came adrift.
呼吸器上的管子脱落时,我差点给憋。
5.Prevents the breath myospasm to cause to suffocate, when necessity makes a great effort the tube incision, the intermittent positive pressure gives the oxygen.