Those hands were shaping stone tools; tools that represent the first step on the great journey of shaping our world.

那些人手塑造出来的石器工具，那些代表着我们塑造世界伟大征程第一步的工具。

But the next step is to go beyond a software crutch, Ms Stone says, and to learn to change one's behaviour without the need for full-screen modes and internet-disabling utilities.

但下一步就是超越这一拐杖式的软件了，她说，我们必须学会改变用户的行为习惯，而不仅是借助于全屏模式或是互联网禁用工具。

Step off the key-locked elevator into a home where steel, glass, stone and wood mingle to stunning effect, yielding an experience that is at once striking and serene.

穿过带锁的电梯，走入到满是钢筋、玻璃、石头和木材混搭出的超美感觉的家，以往经验告诉我们，立马有种十分引人注目和安静的感觉。

The guy had set up his pedal-operated sharpening stone in one of the gloomy step-down doorways in the South End.

这伙计在南城一个阴暗的减缓的门道里安装了踏板操纵的磨刀石。

Step forward into the space where the barrel was and look at the stone plate held down by 4 screws.

一步迈进的空间，让每桶举行，并期待在4个螺丝下来的石板材。