adj .
curutial 중대한, 중추의

• _____ is the adjective form of the verb to pivot. To pivot is to turn on a single point of shaft. A basketball player pivots when he turns while leaving one foot planted in the same place on the floor.
• A _____ comment is a comment that turns a discussion. It is a very important comment.
• A _____ member of a committee is a crucial or extremely important member of a committee.
• Harry's contribution was _____ ; without it, we would have failed.