The plane crashed into the sea.

飞机坠入海中。

《新英汉大辞典》

The police are looking into the reason why the plane crashed into the sea.

警察正在调查那架飞机坠海的原因。

youdao

The Ethiopian jet that crashed into the sea off Beirut on Monday did not fly in the direction suggested by Beirut's control tower, Lebanese officials say.

黎巴嫩官员称，本周一贝鲁特海域坠毁的埃塞俄比亚喷气客机没有按照贝鲁特控制塔指示的方向飞行。

youdao

The 30m (100ft) rocket crashed into the sea shortly after take off.

BBC: US institute: North Korea 'testing at rocket site'

"The work to identify the causes of the accident began this morning but what appears clear is that there was a catastrophic impact as the helicopter crashed into the sea, " he said.

BBC: Salmond considers crash inquiry

The moon made a last dash, traversed the curved grillework of the bridge, tipped toward the sea, crashed into the water like a brick, and sank, sending thousands of little bubbles to the surface.

NEWYORKER: The Daughters of the Moon