重点讲解：
1. due to 由于；因为；
They arrived late due to a motorway hold-up.
他们因高速公路交通堵塞迟到了。
2. heat up 激化；加剧；变得激烈（或热烈）；
North Korea's hard-line political statement against the current continues to heat up.
韩国政界针对朝鲜的强硬言论目前还在持续升温。
3. for sale 供出售；待售；
All the exhibits for sale here are new products.
这里展销的尽是新产品。
4. thanks to 幸亏；归因；
Thanks to our hard work, we can fulfil the task on time.
托赖大家的努力，才能按时完成任务。