a chicken and egg situation
informal› a situation in which it is impossible to say which of two things existed first and which caused the other one
雞與蛋孰先難定的情況;因果難定的情形
(Cambridge English-Chinese (Traditional) Dictionary의 “a chicken and egg situation” 번역 © Cambridge University Press)
오늘의 단어
soil
the material on the surface of the ground in which plants grow