1. Vawter climbed 103 floors of a Chicago skyscraper on his bionic leg, but its designers are still working on improving it. To optimize it for everyday use, they have to make it even thinner and lighter. Its successor (the iLeg Air?) may meet the Army's stated goal for a bionic leg—10,000 steps without recharging.
2. 7) I am often in a bad mood 0 1 2 3 4
3. We will ensure that foreign trade continues to pick up and register steady growth.