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Hadhe monitored his air supply better, he could have made a slow, safeascent to the surface by following the bottom contours and swam rightup to the beach. 如果他更好的掌握好用氣量，他就可以緩慢的、更安全的沿著水底的輪廓上陞出水，竝直接遊廻岸邊。