grindstone for polishing jade
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他山之石,可以为错。
Stones from other hills may serve to polish the jade. / Advice from others may help one overcome one's shortcomings.
polish jade
grind; rub
inlay or plate with gold, silver, etc
be interlocked and jagged
intricate; complex; confused
wrong; mistaken; erroneous
fault; demerit; mistake; error; blunder
[used in the negative] bad; poor
make way; evade; dodge; miss
alternate; stagger
except