Unreliable

(adj.) not worthy of reliance or trust; 'in the early 1950s computers were large and expensive and unreliable'; 'an undependable assistant' .

(adj.) lacking a sense of responsibility .

卡里校对

• The witnesses were stupid and unreliable and contradictory, as witnesses always are. 马克·吐温. 傻子出国记.
• But I am growing unreliable. 马克·吐温. 傻子出国记.
• Her recollection of what happened to her the next morning was still more vague and unreliable. 威尔基·柯林斯. 白衣女人.
• Weight clocks had been in use as t ime-measurers since the thirteenth century, but they were, as we have seen, difficult to control and otherwise unreliable. 李贝. 西洋科学史.

校对:奥菲莉娅