The cutting tools used by the undersea robots left a jagged edge on the remnants of the pipe which will make fitting of a fully sealed containment device more difficult.

水下机器人使用切割工具将管道剩余的部分切割成锯齿状边缘，这将使围堵设备将管道完全封闭更加困难。

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Dumbledore beckoned Harry to the very edge of the rock where a series of jagged niches made footholds leading down to boulders that lay half-submerged in water and closer to the cliff.

邓布利多示意哈利走到岩石的边缘，岩石上有许多可供踩脚的参差不齐的凹缝，通向下面那些在悬崖周围、半露出海面的巨型卵石。

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To notch or serrate the edge of; make jagged.

长有锯齿边缘常年开花的石竹变种。

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For Leighton Andrews, the jagged edge has just been delivered in the form of a stinging slap around the cheeks from Amanda Spielman, the chair of Ofqual.

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One blurry image from an Air Force tracking station in New Mexico, taken about a minute before the shuttle disintegrated, shows what some observers have interpreted as a jagged leading edge on the left wing.

CNN: Piece of shuttle left wing identified

The other a jagged line, like the edge of a steak knife.

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