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Iron beforehand. Iron your clothes to ensure they are wrinkle-free before putting them in your suitcase。 事先熨烫。先将衣服熨一下，以确保它们在放进行李箱前没有褶皱。 Button up your shirts. Dont forget to button or zip...
Standard medical supplies might seem like an important donation in developing countries but American obstetrician Laura Stachel saw the need for something even more basic: reliable power. Basic need Stachel is crouching on the floor of her Berkeley k...
This is Scientific American 60-second Science. I am Steve Mirsky. Got a few minutes? Today we have a special edition featuring a brief interview with Scientific Americans Larry Greenemeier. So, Larry, whos..whos the fan of our video right now? Well a...
Jeff: So were you always able to live with only a few possessions? Jonathan: Oh, certainly not. The first trip I ever did to South America I had the most massive backpack you could imagine. I mean I had to get it from a sort of military surplus store...
