了解

understand; see; know; inform; realize; comprehend; wise up; be familiar with; check up; figure out; make sense of; get to know; grasp; appreciate; familiarize; apprehend; fathom; take in; get the picture; take on board; tune in; acquaint oneself with; be onto; wise; understanding; informed; aware; conscious; acquainted; cognizant; knowledge; grip; fix; insight; comprehension; apprehension; acquaintance; onto; tuned in

大旨

main idea; general idea; gist; essence; central theme; main point; core message