orca是什么意思,orca怎么读,
1.Unlike orca, which are odontocetes or toothed whales, humpbacks are mysticetes, harmless leviathans with only baleen plates in their mouths.
座头鲸不像齿鲸亚目鲸或齿鲸，它们是须鲸亚目、无害的大海兽，嘴里只有须鲸板。
2.And third, the uneven pattern of otter decline is better explained by the orca predation theory than by the pollution theory.
第三，海獭数量变化的不均衡性恰好表明了逆戟鲸捕食理论比污染理论更合理。
3.Orca whales are known to inhabit the areas where the submarines were picking up the bizarre noises.
所据人们所知，食人鲸生活在潜水艇发现奇怪声音的地区。
4.As the recent death of an orca trainer in Seaworld shows, our interface with whales seems destined to be troubled, and certainly exploitative-sometimes in unusual ways.
最近在海洋世界的一名驯鲸员之死向我们表明，人类对鲸鱼的干涉注定是麻烦重重且充满剥削性——有时以一种不同寻常的方式剥削。
5.My rib driver takes almost no time finding the whales thanks to calm water, dry weather and a call from a fisherman who points her in the direction of a known orca hangout in the fjord.
我的橡皮艇驾驶不一会儿就发现了鲸鱼，多亏水面平静，没有下雨，还有一名渔夫的叫唤，指点她峡湾中一处虎鲸惯常出没地点的方位。