essential element是什么意思 essential element怎么读
essential element的用法和样例
- The theme is chosen in view of the human reliance on water as an essential element of life.
选择此题材是由于水是人类赖以为生的一个主要元素。 - Soon,the dance elements faded into the background and improvisation became the key element of the music.
但不久原本这些舞蹈的元素就隐退了，取代之而成为爵士乐主要元素的便是即兴演奏。
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