You should learn to use a hammer before you pick up a nail gun. Likewise, you should become comfortable managing classes manually before you try to use more powerful tools.

在想要使用电动射钉枪之前要先熟练使用锤子，与此相似，在试图采用更强大的自动管理工具之前也要先能自如地手动管理这些类。

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Marie wanted the girls to have the tools to succeed in academia and fought tooth and nail to provide every opportunity.

玛丽要这些女孩子们能学到当时在学术界能取得成功的工具，并竭尽全力地争取为她们提供每一个可能的机会。

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Description: Production nail, pneumatic drills, pneumatic screwdriver, wind mill, pneumatic wrench and pneumatic tools.

简介：生产钉枪、风钻、风动螺丝批、风磨、风动扳手等气动工具。

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Some tools that a few decades ago would be unknown outside a professional setting--nail guns, especially--are now cheap enough that all manner of weekend warriors have them in their basements.

FORBES: Safety

Creating "risk-assessment tools" is the kind of thing all bureaucracies excel at: It's the proverbial nail for the guy with the hammer.

CENTERFORSECURITYPOLICY: Major Hasan: the counterlife