not to act against those on whom you depend
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送交者: 糖蜜 于 2012-12-03, 11:20:04:
回答: 狗咬大娘嘛，你没有喂过狗。 由 糖蜜 于 2012-12-03, 11:17:00:
Read more at http://www.usingenglish.com/reference/idioms/don't+bite+the+hand+that+feeds.html#SiqpfmeJru6iJwFB.99
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