When his boat was well-laden, the Mermaid would sink down into the sea, smiling at him.

当他的船满载时，美人鱼会沉到海里，对他微笑。

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As the ocean floor plate begins to sink down into the mantle, it would drag or pull the entire plate along with it.

当海洋底部开始下沉到地幔中，它会同时将整个海底板块拖拽下去。

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The oceanic plate is made of denser and heavier rock, so it begins to sink down under the continental plate and into the mantle.

海洋板块是由密度更大、更重的岩石构成的，所以它开始下沉到大陆板块之下，到地幔之中。

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But could find none. "Over time oil does dissipate and can get broken down from bacteria and other organisms in the water, but still they are putting certain dispersants on the oil that makes it sink down to the bottom."

VOA: standard.2010.05.09

"Some theories say that small black holes in globular clusters should sink down to the center and form a medium-sized one, but our discovery suggests this isn't true, " said Daniel Stern, an astrophysicist at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

MSN: Existence of middleweight black holes nearly ruled out

He set up for several promising putts of the type that fans are accustomed to seeing Mickelson sink coming down the stretch.

WSJ: Masters 2012: Bubba Watson Miracle Shot Lets Him Trump All Comers

He leaped over the sink and then back down onto the chair.

NEWYORKER: Max at Sea