堑：壕沟，比喻困难、挫折。受一次挫折，增长一分见识。
Fall into the moat and you'll be wiser next time (idiom); One only learns from one's mistakes.
吃(chī)
一(yī)
堑(qiàn)
()
长(cháng zhǎng)
智(zhì)
