@sirgetagrip @David_LKaplan @greg_travis I have indeed taught math, but only at college level and it was not particularly recent. I don't claim this is relevant experience.
@sirgetagrip@David_LKaplan@greg_travis我确实教过数学，但只是在大学阶段，而且不是最近才教的。我不认为这是相关的经验。