Language learning needs lots of practices, which include mechanical drills, meaningful exercises, output training as well as variety of interactions.

语言学习需要大量练习，既有机械性的练习，也包含各种有意义的练习；

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Monnon, a capable engineer and respected leader, led his crew through the cold hardship of carving the ice with laser-borers, mechanical drills and more than a few mitted hands and vibrospades.

墨农是一位能干的技师又深受敬重的领队，带领著部下使用雷射钻孔器与电钻，加上双手以及电动铲子挖掘。

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Exercises accompanying textbooks too often focus on mechanical grammatical or vocabulary drills.

演习陪同教科书往往侧重于机械语法或词汇演习。

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They used drills, spades, mechanical diggers and hands.

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