dia-, 穿过，整个的。-gn, 知道，词源同know, cognizance. 用于医学名词。

1. He could diagnose an engine problem simply by listening.

他仅靠听就能判断发动机出了什么问题。

2. The test is used to diagnose a variety of diseases.

此项化验可用于诊断多种疾病。

3. The Diagnose button is used to troubleshoot DS 1 interface problems.

Diagnose按钮是用来排除DS1接口故障的.

4. What more will you want to know to diagnose this problem?

要弄清这个问题,你还需要知道些什么?

5. Geological investigations must correctly diagnose a specific soil - like condition.

地质调查必须正确地判断出明确的土 状 条件.