The current study examines two important principles in the theory, i.e., the Invariance Principle and the Entailment Hierarchies.是什么意思_The current study examines two important principles in the theory, i.e., the Invariance Principle and the Entailment Hierarchies.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句