He is facing multiple problems.

I forgot my mobile phone charger.

His body is very healthy.

He made three robots.

He exercises his body every day.

His body looks like that of an athlete.

When learning a new language, it's important to increase the number of lexemes.

Lithium aluminium hydride is necessary for this chemical reaction.

The pH of this liquid is 7.

Hydrocyanic acid is a very dangerous chemical.