计
Meanings
1. to calculate
2. to compute
3. to count
4. to regard as important
5. to plan
6. ruse
7. meter
8. gauge
Characters used
Examples4
现在
There are millions of people all over the world who are watching the World Cup right now.
三十
The only solution is to escape.
当
When you send a telegram, brevity is essential because you will be charged for every word.
糟了！
Crap! I fell for his trap!