Single-Leg Kick has been a favorite drill of some of the world's greatest breaststrokers.

单腿蛙泳练习历来是世界级优秀蛙泳选手的最爱。

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Mark location of the holes for the opposite leg and drill three more holes.

标注出对面支柱的孔洞位置，并打钻出三个孔。

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The high seam drill 2000 is stainless steel construction and the cylinder rods of the 1st inner legs of the stinger and drill leg are stainless steel.

这种厚煤层钻孔机2000是不锈钢结构，钻头第一内部腿架的活塞杆和钻孔机支架都是不锈钢的。

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Super lifehacker Tim Ferriss is a bit of a masochist, the kind of guy who will ask doctors to drill a chunk of muscle out of his leg to analyze the fibers.

FORBES: The 4-Minute Tim Ferriss: Learning to Meta-Learn at SXSW

In one drill, Curry has to perform a series of between-the-leg and behind-the-back dribbles while catching and throwing a tennis ball with his right hand.

WSJ: Two Things Stephen Curry Does Better Than You