重点讲解：
1. think ahead
事先考虑；预见；
eg. We're already thinking ahead to our next move.
我们已事先考虑到下一步怎么办。
eg. Policy makers need to think ahead.
决策者需要深谋远虑。
2. let sb./sth. go
放走；释放；让…逃走；
eg. I'm quite happy really to net a fish and then let it go.
网到鱼后又把它放生，我挺开心的。
eg. They held him for three hours and they let him go.
他们扣留了他3个小时后放走了他。
eg. He loosened his grip and let her go.
他松手放开了她。
3. skip over
遗漏；略过；
eg. She reinvented her own life story, skipping over the war years when she had a German lover.
她重新杜撰了自己的生平，略掉了在战争年代有过一个德国情人的经历。
eg. When I read a book, I usually skip over the uninteresting parts.
当我阅读一本书时，我通常跳过无趣的部分。
eg. I'll skip over your rudeness.
我不会计较你们的粗鲁。