They wouldn't even have been able to get started without earth science understanding—knowledge about wind, storms, meteorology.
如果没有对地球科学的了解——关于风、风暴、气象学的知识，他们甚至不可能起步。
2
A strong wind of dust storms can carry heavy objects, so you should try to stay low, and close to the ground, and protect your head with your arms or a backpack.
强劲的沙尘暴可以卷起重物，所以你应该尽量保持低姿态，靠近地面，并用你的手臂或背包保护你的头部。
3
The area is frequently beset with sudden storms, snow, wind and the weather may change quickly in a day.