He made his intentions explicit.

His stance on the issue is clear.

The doctor performed an ultrasound to check the fetal development.

The national flag of the USA is called the Stars and Stripes.

Flexibility is important in adapting to new situations.

The set A is a subset of set B.

Each word in English is made up of one or more syllables.

The sunshine tempted people out.

The thickness of the paper is important for printing.

He sucked his thumb when he was a child.