People used simple tools to dig the canal, completely by hand.

人们使用简单工具来挖这条水渠，纯粹靠手完工。

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Chopsticks are not just simple tools to pick up food. We should learn the traditional culture behind forks and knives well.

筷子不仅仅是简单的夹取食物的工具。我们应该好好学习叉子和刀子背后所蕴含的传统文化。

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Use simple tools and systems.

使用简单的工具和系统。

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They prepare the soil for planting with their hands or simple tools.

VOA: special.2009.04.14

Through the simple tools of classical conditioning then, the shoe becomes a conditioned stimulus giving rise to the conditioned response of sexual pleasure.

接下来，通过经典条件作用，鞋子变成了条件刺激,引起了性快感这一条件反应。

耶鲁公开课 - 心理学导论课程节选

The job can be done with simple cutting tools or by hiring a professional shearer.

VOA: special.2010.09.07

Simple tools with game-like interactions make it fun to become and remain engaged in your health.

FORBES: The New Era Of Interactive Health

She could tell by Tumblr's elegant look and simple tools for creating content.

WSJ: Tumblr CEO's mom gushes over billion-dollar baby

Some will require a set of simple tools, others more advanced technology.

FORBES: Power Management Questions for Every CIO