1.at the very least 至少

At the very least, he's found a program that works wonders for him.

至少，他找到了对自己有效的一个方案ZpI;RG0J]dCU=@2_YJDX。

2.set back 使……受挫折

The cause of free trade has also been set back.

自由贸易的促成也会受挫vK]Oa@JJ+Goj5。

3.back on track 重回正轨

He said countries must work together to get the global economy back on track.

他说，各国必须共同努力，使全球经济回到正轨[KwACJ_dEUex。

4.drone aircraft 遥控无人驾驶飞机

The United States says it has carried out its first attack in Libya, using an unmanned drone aircraft.

美国称他们已经使用无人机对利比亚发动了首次袭击Y[c5mX=[*YAxR|。