The system shown in Figure 2 is quite simple, but that would hardly be the case in real life.
图2显示的系统相当简单，因此不可能是现实中的案例。
Butt new research shows that a few simple 'life hacks 2' can make the process much quicker and pain-free than you may think.
但最新调查研究表明，几个简单的生活小技巧可帮助我们加快结账排队速度，并且没有我们想象中那么复杂麻烦。
It might not sound like much. But this simple 2 minute exercise can help you to uncover a lot of the happiness that is already in your daily life.
也许听起来没什么大不了，但简单的两分钟练习就能帮助你发现日常生活的幸福美妙。
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