Especially if they are writing a review on a key feature.

For almost a century and a half, it was the key feature of the village's development.

Many key features of the constitution are directly taken from this Act.

However money still has to be found to complete repairs to some of the key features.

Another key feature here is the presence of several cultural groups.

One key feature of the law already has been struck down in court.

One key feature of a State is that it should have a single financial system.

Another key feature is that the State should have control over arms.

In fact a key feature of the modern world is that the state has lost control over violence.

The key feature of this phone is touch and type.