He is in charge of the transmission of important information.

Please send it by express delivery.

Rumors are spreading that he is the culprit, but there must be some reason because 'where there's smoke, there's fire.'

My new tablet comes with a stylus.

The touchpad on my laptop is not responding.

I use a set square to draw shapes.

In chemistry class, I learned about acid anhydride.

In chemistry class, I learned about acidic oxides.

Lower fatty acids play an important role in the human body.

Essential fatty acids are necessary to be taken from our diet because our body cannot produce them on its own.