中國網(wǎng)站品牌欄目（頻道）
A sow, when washed; returns to the muck.
江山易改，本性難移。
更多英語諺語
A smooth sea never made a skillful mariner.
A smart coat is a good letter of introduction.
A servant is known by his master's absence.
A secret between more than two is no secret.
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