What's a mnemonic for remembering the characters in 建议 and 意见?
Just remember:
建立 - erect
议論 - theory
建议 (raise theories) --&gt; to suggest (v) --&gt; suggestion (n)
~
意 - mind
见 - see
意见 (mind see) --&gt; idea ; opinion
Just associate the single characters in these compound words with other related compound words. In short, cross reference them
Also see 认识 vs 知道 based on glyph origins