First of all, you need to determine why you took the translation certificate. If you just want to have a certificate to prove that your English is not bad, you can rely on NAETI, but the gold content of this exam is really low, and Level 3 is very simple. If you want to be an interpreter, it is difficult to take the CATTI exam, but it also contains a lot of gold, especially the second grade. NAETI is an examination of the Ministry of Education, while CATTI is an examination of the Ministry of Personnel, which is more authoritative and professional. Interpretation and translation are tested once a day. Interpretation is on Saturday and translation is on Sunday. There are many differences in content, and interpretation is mainly conference-based and lecture-based. Proficiency is required, and oral English must be fast. But after graduation, the content is more professional and deeper.