test [test] 测验；测试；(医疗上的)检查，化验
difference [ˈdɪfrəns] n.差别；差异
The results of the test were very successful.
Tell me. How can I help you to pass the test?
"I'm ready to go out into the world and test myself. " he said.
It was hard to tell the difference between the two samples.
She doesn't understand the difference between right and wrong.
Children must be taught the difference between right and wrong.