1.lecture about 作報告，辦講座

We found the lecture about the manned spacecraft terrific.
我們發覺關于載人航天飛機的講座太棒了。

Great way of having a lecture about local fauna and flora.
有關於地方動物群和植物的一個演講的大師方法。

2.come up to 達到；將近；來到近旁

I find that people are just wonderful because people come up to me all the time and I think it is because the character is so accessible that they feel it is how I am, too.
我發現人們實在太好了，大家一直都來關心我，而我覺得這是因為這個角色很親切所以都覺得我應該也是這個樣子的。

Some parents, she said, would come up to her and ask about a magic pill or vitamin "to cure their child."
她說，有些家長會來找她，問她有沒有特效藥或者維生素“來醫好他們的孩子。”

3.call on 號召；要求

One of Kenya's leading churchmen has called on the government to resign...
肯尼亞一位高級宗教人士要求政府下臺。

Frequently he was called upon to resolve conflicts.
不斷有人要求他出面解決沖突。

4.fail to 未能

Things change and when you fail to grasp that truth you suffer.
世事變遷，而且你也未能領會承受折磨的真相。

Every year flying cars fail to take to the skies is a disappointment.
每一年，天空中都未能出現飛翔的汽車，這真是令人失望。