重点讲解:
1. light up 点烟;开始吸烟;
He held a match while she lit up.
他拿了根火柴为她点烟 。
2. at first 最初;起初;开始时;
At first I scoffed at the notion.
刚开始我对那种想法嗤之以鼻 。
3. in order to 为了;以便;目的在于;
In order to ensure success we must have a complete and thorough plan.
为了保证成功,我们必须要有一个周密的计划 。
4. be careful to do sth. 小心的;仔细的;谨慎的;
He was always careful to avoid embarrassment.
他总是小心谨慎地避免尴尬 。
n. 根据,证据
v. 证实,证明