freediving
US /ˈfriː.daɪ.vɪŋ/
UK /ˈfriː.daɪ.vɪŋ/
名詞
1.
フリーダイビング
the activity or sport of swimming as deep as you can under water without using breathing equipment:
例:
•
In freediving the diver descends with no more than a lung full of air, to depths of up to 100 meters.
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