Eigenmode
本征模
??? 情景例句
You want to play charades?
你想玩啞謎？
A ready way to lose friend is to lend him money.
失友都因借錢起。
These are partly a matter of personal circumstances, partly a matter of psychology.
這里一方面是個人所處的環境，另一方面是個心理學的問題。