1我一进教室,就开始上课了.
The moment I entered the classroom ,the class began
Hardly had i entered the classroom when the class began
No sooner had I come into the classroom than the class began.
2我们不知道他是否会来.
I don't know whether he will come or not
I doubt whether he will show up
I have no idea whether he will appear
3我们的生活充满了机遇和挑战.
Oppotunities and challenges always appear together in life
Our life is full of Oppotunities and challenges
In our daily life ,we meet with Oppotunities and challenges
Oppotunities are always accompanying challenges in life
4许多大河里的鱼都死于水污染.
The fish in the big rivers died of water pollution
Due to the water pollution ,a large quantities of fish in big rivers were dead
5去机场花了我两个小时的时间.
It took me two hours to get to the airport
I spent 2 hours getting to the airport
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