sophisticated 復雜的; 精致的; 富有經驗的
Simple solutions require sophisticated technologies.
簡單的方案要求復雜的技術。
Not only is training overseas exposing chinese swimmers to more sophisticated coaching, it is teaching them about life and the wider world.
不僅是海外受訓揭露了中國游泳者有更富有經驗的教練，教他們生活和更廣闊的世界。

spring back 彈回
The conclusion is that Robbie comes springing back like an elastic band.
最后的結果是，Robbie像橡皮筋一樣彈回來
He was exiled by his party for years after miserable european election results in 1999, only to spring back stronger.
在1999年歐盟選舉失利后，薩科奇就一直被黨內人士排擠，可是隨后他又東山再起。

let it go 放手吧隨它去吧
Let's just let it go.
過去的事就讓它過去吧.