现在必须得停一下了，之前说到的，可以通过把坐标系变换到某平面上，那些曲面都是平的。
Now, this has to stop somewhere. I can start claiming that I can somehow bend my coordinates to a plane, any surface is flat.
结果发现在月球南极附近的火山口最低温度竟可低到华氏零下397度，这种低温之前从来没有在太阳系发现过。
The temperatures in the craters can dip as low as -397 degrees F, the lowest temperatures recorded anywhere in the solar system.
他摸索自己的四肢，发现几颗纽扣不见了，衣服翻到了脑后，之前放在口袋里的刀不见了，之前系在下巴下的帽子也不见了。
His knife had gone from his pocket and his hat was lost, though he had tied it under his chin.
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