Caution! The site can't guarantee, that text has age permission. The site is not recommended, if you are less than 18 years old.
The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... Cheng and colleagues got round this problem by first painting a paste containing a key ingredient of peelable face masks, polyvinyl alcohol, calcium carbonate, onto the skin. The addition of other nanoparticles to this paste such as aluminium and magnesium oxides, metallic salts and copper, all helped to reduce the temperature needed to print the sensors. ... "