程序员资格证:Proof of programmer's qualification.
全国计算机等级考试合格证书:Certificate of a pass of a level test of a computer of the whole country.
三级数据库技术合格证书:Certificate of a technological pass of a data base of a third class.
cet4:College English Test 4 (按理解是这样)
注:在英文里"全国计算机等级考试合格证书"和"三级数据库技术合格证书"是不同的,前者范围比较广,而后者则是特指某一类技术的合格证明.
ect4 第四种电惊厥疗法