Transition from under water swimming, to full-stroke freestyle by gradually rising to the surface.

在水下游泳过渡，full-stroke自由泳逐渐上升到水面。

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"Tidal waves" from under water blasting can sometimes cause problems for adjacent installations such as sluice gates.

水下爆破产生的“浪涌”，有时可能对邻近的，诸如水闸门之类的设施造成问题。

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Tidal waves "from under water blasting can sometimes cause problems for adjacent installations such as sluice gates."

水下爆破产生的“浪涌”，有时可能对邻近的，诸如水闸门之类的设施造成问题。

youdao

For its first trip, the submarine sailed under water from New London,Connecticut to San Juan,Puerto Rico.

VOA: special.2010.06.11

For example, she says millions of people will suffer from either too much water or too little water under climate change.

VOA: standard.2010.01.02

This type of tag, however, requires a buoy to carry the aerial, and this is attached to the shark by a ten-metre-long line. (The line is needed because the sharks themselves rarely break the surface, and the transmitter cannot signal to the satellite from under water.) Two American biologists, Scott Eckert and Brent Stewart, from the Hubbs-Sea World Research Institute in San Diego, have had some success with satellite tracking.

ECONOMIST: Whale sharks

"The man was fishing with a lure and he was casting a lure out into the water when the croc came up from under the water and snapped at his hand, " Mr Shean told The Cairns Post.

BBC: Australian angler survives crocodile attack

Johns River so contending with flooding, we still have communities under water from Faye.

NPR: Hurricanes Wreak Havoc In Haiti And Cuba