It is essential
It is essential
essential
essential
必需元素(essential element)
必需元素(essential element)
essential that you start by
essential that you start by
It was essential that the system (work).
It was essential that the system (work).
Gelation is not an essential step.
Gelation is not an essential step.
essential/vital/significant
essential/vital/significant
Learning is most essential for _________.
Learning is most essential for _________.
essential 汉语意思 ________
essential 汉语意思 ________
Teamwork is essential on this course.
Teamwork is essential on this course.