| 1. | Sea mammals must emerge periodically to breathe 海生哺乳动物必须不断地浮现出海面呼吸。 |
| 2. | Sea mammals must periodically emerge from under the sea to breathe 海生哺乳动物必须不断地从海底浮出海面呼吸 |
| 3. | Dr vincent janik of the sea mammal unit at st andrews university said they conducted the research on wild dolphins 雅尼克博士说,他们的研究对象是野生海豚。他说: |
| 4. | Condors seem to have mixed sea mammals into their diet after the last ice age , the researchers conclude 研究人员得出的结论是:在上一次冰河时期过后,秃鹰的食物当中,似乎掺杂了海生的哺乳动物。 |
| 5. | Dr vincent janik , of the sea mammal unit at st andrews university , said they conducted the research on wild dolphins 圣安德鲁大学海洋哺乳动物研究中心的文森特雅尼克博士说,他们的研究对象是野生海豚。 |
| 6. | Dr vincent janik , of the sea mammal unit at st andrews university , said they conducted the research on wild dolphi 圣安德鲁大学海洋哺乳动物研究中心的文森特。雅尼克博士说,他们的研究对象是野生海豚。 |
| 7. | Dr vincent janik , of the sea mammal unit at st andrews university , said they conducted the research on wild dolphins 圣安德鲁大学海洋哺乳动物研究中心的文森特。雅尼克博士说,他们的研究对象是野生海豚。 |
| 8. | A sea leopard behind a curtain of plankton . like all sea mammals , sea leopards are curious , says photographer bill curtsinger . but they can also be dangerous 一只海豹躲在浮游生物的幕面。摄影师比尔?克钦格说,像其他海洋哺乳动物一样,海豹非常好奇,但同时也具有危险性。 |