忘本[wàng běn]
词典忘本的解释
词典forget one's class origin：忘本。
词典忘本
词典forget one's past suffering：忘本。
danci.911chaxun.com
forget one's class origin; forget one's past suffering:
例：当了领导干部可不能忘本。
One must not forget his origin, now that he is appointed to the leading post.
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