四级翻译句子的常用技巧解析：
一、
I.汉语从反面表达，译文从正面表达
例1：他提出的论据相当不充实。
译文：The argument he put forward is pretty thin. (词)
例2：我们确信，年轻一代将不会辜负我们的信任。
译文：We are confident that the younger generation will prove worthy of our trust. (短语)
例3：他七十岁了，可是并不显老。
译文：He was 70, but he carried his years lightly. (句子)
II.汉语从正面表达，译文从反面表达
例4：他这个人优柔寡断，而且总是反复无常。
译文：He was an indecisive sort of person and always capricious. (词)
例5：调查结果清清楚楚地显示病人死于心脏病。
译文：The investigation left no doubt that the patient had died of heart disease. (短语)
例6：这类举动迟早会被人发觉的。
译文：Such actions couldn’t long escape notice. (句子)
III.特殊的否定句式
例7：有利必有弊。
译文：There is not any advantage without disadvantage. (双重否定)
例8：我们在那个城市从未因为是犹太人而遭受歧视。
译文：In that city, we had never suffered discrimination because we were Jews. (否定转移)