重点讲解：
1. grounds for
理由；根据；
eg. In the interview he gave some grounds for optimism.
他接受采访时阐述了持乐观态度的理由。
eg. They have reasonable grounds for suspicion.
他们有充分的根据产生怀疑。
2. lose patience/lose one's patience
失去耐心；发脾气；
eg. As the minutes ticked away they to lose patience.
随着时间一分一分的过去，他们开始变得不耐烦了。
eg. If you don't stop making that noise I'm going to lose my patience.
你要再不停止发出噪音，我可要火了。
3. why the heck
（尤在迷惑或恼怒时用于疑问句中表示强调）到底，究竟；
eg. Why the heck are you standing here?
你站在这里做什么？
eg. Ask yourself this: If you don’t like who you really are, why the heck should I like you?
问问自己：如果你自己都不喜欢真实的自己，那别人怎么会喜欢你呢？
4. hold a conversation
谈话；
eg. It's impossible to hold a conversation with all this noise.
噪音这么大，根本没法进行交谈。
eg. It remains to be seen whether I would ever again be able to hold a conversation with John.
我能否和约翰再次进行谈话现在还不清楚。