由于一次只能激活一个基础层，所以可以随意添加很多的基础层，但默认地先激活第一个基础层。

Because only one base layer can be active at a time, you can add as many base layers as you like, but the first one will be active by default.

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先穿一层薄的化纤衣料比如聚苯烯，这样可以吸收身上的汗。

Start with a thin layer of synthetic material such as polypropylene, which wicks sweat from your body.

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我们从那个大铁门离开，乘着电梯从地下十层来到地上，先通过视网膜扫描，然后穿过一个带有滑动玻璃门好像飞船的空气舱一样的玻璃房间。

We leave through the steel doors and head up the ten-story elevator, past the retinal scanner, and through glass Chambers with sliding doors that seem like air locks on a spaceship.

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s But it just turns out that the 4 s is so low in energy that it actually surpasses the 3 d, because we know the 3 d is going to be pretty high in terms of the three shell, and the 4 s is going to be the lowest interms of the 4 shell, and it turns out that we need to fill up the 4 s 4s before we fill in the 3 d.

但是结果是,能量较低,4s是第四层最低的，因为我们知道3d在第三层,是非常高的，4s是第四层,最低的，结果是我们在填充3d之前,需要先填充。

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