subjective activity

例句：

1. 1. The decision was made based on subjective factors.
   这个决定是基于主观因素做出的。
2. 2. The researcher believes that the results are subjective.
   研究者认为这些结果具有主观性。
3. 3. The author's opinion is subjective and should be taken with a grain of salt.
   作者的观点是主观的，应该谨慎对待。