The challenge is doing it under 150 atmospheres of pressure with the tools and lights of a robot mini-submarine that gets its power and instructions by way of a cable.

使用机器人迷你潜水艇上的工具，借助其灯光，在150个大气压下工作，才是真正的挑战。这个迷你潜水艇通过一根电缆获得能源和指令。

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So, treat each new day as a new personal mini-challenge: forget past successes and failures.

所以，把每一天都当做是对我们的一个小小挑战：抛却昨天的成功与失败。

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The challenge is keeping the mini meals mini.

目前的挑战是保持迷你小餐。

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Those wanting more of a challenge will likely find FGO lacking, even dull, despite mini-games like the mechanical bull ride.

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As if to drive home the challenge, the Berlin state government took the opportunity to launch its own mini Tech City initiative, called Login.

WSJ: Berlin Eyes Careful Balance To Bolster Tech Sector