请教

henghengzhu

想表达以下几个意思，不知较地道的说法是什么，请帮忙看看，谢谢：
1. 班门弄斧
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3. 抛砖引玉

xiaoz

汉语成语的英译可以用google在网上查。
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（不要）班门弄斧：Never offer to teach fish to swim, or Don't teach your grandmother to suck eggs.
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2 C' c5 p* U- k. {% r抛砖引玉: To throw out a minnow to catch a whale.

henghengzhu

2# xiaoz
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Thanks a lot.