重点讲解：
1. over the moon 非常高兴；乐翻了天；狂喜；
The whole team is over the moon at winning the competition.
全队都为赢得这场比赛而欣喜若狂
2. neck-and-neck (尤指选举中)并驾齐驱，难分高低；
The party is running neck-and-neck with Labour.
该党和工党目前是旗鼓相当。
3. step down 辞职；下台；让位；
He stepped down last month because of illness.
他上月因病辞去了职务。
4. etch into 蚀刻；凿刻；
Crosses were etched into the walls.
墙壁上刻着十字架。