重点讲解：
1. finish up
完成；做成；
eg. We must finish up this business ahead of time.
我们必须提前把这件事了结。
eg. Finish up at cozy cafe, where you can get coffee and dessert.
最后在咖啡厅点杯咖啡品尝甜点结束一天的美食之旅。
2. grow up
别犯傻；别孩子气；
eg. It's time you grew up.
你该懂事了。
eg. The smoker gets angry and tells Sue to grow up.
吸烟的人怒气冲冲，教训苏说她别那么孩子气。
3. catch up with
赶上；追上；跟上；
eg. I can hardly catch up with you, can you walk slowly?
我几乎赶不上你了，你能走慢一点吗?
eg. You walk on and I'll catch up with you later.
你往前走吧，我一会儿就赶上你了。
4. in case
以备；以防；免得；
eg. You must remind him to take his medicine, in case he forgets.
你要钉着他吃药，别让他忘了。
eg. Dad brought a notebook along to the beach, in case he was seized by sudden inspiration.
爸爸带了一个笔记本去海滩，如果突然有了灵感可以记录下来。