If they have time, astronauts and cosmonauts will look to plug the leak or close the hatch to the leaking section of the station. (That is how they dealt with a minor leak in the station’s PrK module for a number of years, and it basically worked.) Remember, though, that this is the worst-case scenario, and our crew will run into a hard deadline. Once pressure falls to around 490 mm Hg, NASA says, critical systems risk breaking down. Astronauts could suffer hypoxia, oxygen deprivation so debilitating they could become delirious. It will be a heart-wrenching call, but if nothing else can be done, the crew will need to go to their crew vehicles and leave the ISS.
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另外就是拉链、扣子这种东西怎么系。有时候孩子很乐意自己穿脱，但是学习系扣子会有一些情绪崩溃的时候，比如系不上，系串了会显得急躁，有时候还会给自己急哭了。这都没关系，安抚情绪，鼓励她，然后手把手多教几遍，在让她每天练习就行。