It was an extremely difficult and dangerous task.

这是一项极度困难的危险的工作。

The weather is promising.

天气可能好转。

We had a fabulous time at the garden party.

我们在游园会上玩得很开心。

There are many people I'd like to thank.

我想感谢很多人。

Excitement and happiness, and we are deeply grateful to you for that.

也有开心、兴奋和愉快的时候，我们衷心感谢大家所做的一切。

If you concentrate all your energies on the study of English, you will master the language.

你若全力以赴地学习英语，你会掌握这门语言的。