bō / pǔ / ěr / rèn / wéi / zhǐ / yǒu / néng / gòu / bèi / zhèng / wěi / de / lǐ / lùn / cái / shì / kē / xué / de波普尔认为,只有能够被证伪的理论才是科学的。Popper argued that only theories that can be falsified are scientific.