"theories can incorporate facts and laws and tested hypotheses"
"true in fact and theory"
"a scientific hypothesis that survives experimental testing becomes a scientific theory"
"he proposed a fresh theory of alkalis that later was accepted in chemical practices"
"the architect has a theory that more is less"
"they killed him on the theory that dead men tell no tales"
来自柯林斯例句
来自柯林斯例句
来自柯林斯例句
来自柯林斯例句
来自柯林斯例句