例：
Exam results are not the only yardstick of a school's performance.
考试结果不是衡量学校水平的唯一标准。
These woollen suits are not designed for wear in hot climates.
这些毛料西服不是为炎热气候下穿着的'。
We are not getting any further forward with the discussion.
我们的讨论没有取得任何进展。
The two sets of figures are not significantly different.
这两组数字没有明显的差别。
The results of the experiment are not statistically significant.
从统计学的观点看，实验结果意义不明显。