The bike tires follow a deep trench on a steel track.

自行车轮胎可以在钢索的深槽里滑动。

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After four and a half field seasons, I have finally reached bedrock in the deep trench in the East Court!

在四个半挖掘季之后，我终于到达了东院深沟中的基岩！

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He drew Honor to a halt at the edge of the moat, a deep trench lined with stone, its green waters choked by scum.

他让“荣誉”停在护城河边，一条石墙围住了深深的沟壕，绿色的河水被浮渣阻塞。

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The trench is an extremely deep hole on the floor of the Indian Ocean.

VOA: special.2009.03.17

On Jan.23,1960, the two men took the Trieste to the deepest point in the Pacific Ocean's Mariana Trench, a ravine called Challenger Deep.

VOA: standard.2010.06.21

Biscom, a Milan-based broadband cable operator whose stock is currently buried in a deep trench, along with a host of other, bigger telecom companies.

FORBES: A fiber niche is nice

But it was only three years ago that vents were first detected in the Cayman Trough, a deep trench formed by the boundary between two tectonic plates.

BBC: Deepest undersea vents discovered by UK team

On a recent tour of a 500-foot-deep Bahamian trench Hawkes surprised a shark that hadn't sensed the Aviator's presence.

FORBES: Cruising Altitude: Minus 400 Feet