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The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... “At certain frequencies and pressures, sound waves cause the microbubbles to act like balloons: they expand and contract periodically… Microbubbles can significantly expand, until they explode violently. We realized that this discovery could be used as a platform for cancer treatment and started to inject microbubbles into tumors directly.” ... "