1 to test (machinery etc)

2 to test (students)

3 test

4 quiz

5 exam

6 beta (software)

1 to take an exam

2 exam

3 classifier: 次 cì

1 to test

2 to try

3 experiment

4 examination

5 test

1 to try

2 to attempt

3 classifier: 次 cì

1 to repeat

2 to double

3 to overlap

4 complex (not simple)

5 compound

6 composite

7 double

8 diplo-

9 duplicate

10 overlapping

11 to duplicate

1 to challenge the law (idiom)

2 to knowingly violate the law

1 lit. to reach the tip and try (idiom); to have a go when at one's peak

1 to give a small demonstration of one's impressive skills (idiom)

1 to be eager to give sth a try (idiom)

1 tangled and complicated (idiom)